diff --git a/eng/Versions.props b/eng/Versions.props
index 64c006d304..bff1b8730c 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -17,6 +17,8 @@
     <UseVSTestRunner>true</UseVSTestRunner>
     <UsingToolNuGetRepack>true</UsingToolNuGetRepack>
     <UsingToolSymbolUploader>true</UsingToolSymbolUploader>
+    <!-- Don't allow netstandard1.x dependencies when building from source in this repository. -->
+    <FlagNetStandard1XDependencies Condition="'$(DotNetBuildSourceOnly)' == 'true' and '$(DotNetBuildOrchestrator)' == 'true'">true</FlagNetStandard1XDependencies>
     <!-- Toolset -->
     <MicrosoftVSSDKBuildToolsVersion>17.0.1056-Dev17PIAs-g9dffd635</MicrosoftVSSDKBuildToolsVersion>
     <MicrosoftVSSDKVSDConfigToolVersion>16.0.2032702</MicrosoftVSSDKVSDConfigToolVersion>
@@ -48,11 +50,11 @@
 
            Example of surface area usage:
 
-           <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
+           <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
 
            Example of executable usage:
 
-          <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
+          <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
     -->
     <!-- Microsoft.CodeAnalysis versions for different purposes. -->
     <!-- Surface area that various projects compile against. These should have source-build reference packages -->
diff --git a/src/Microsoft.CodeAnalysis.AnalyzerUtilities/Microsoft.CodeAnalysis.AnalyzerUtilities.csproj b/src/Microsoft.CodeAnalysis.AnalyzerUtilities/Microsoft.CodeAnalysis.AnalyzerUtilities.csproj
index 34a1d4e34a..9f022351bd 100644
--- a/src/Microsoft.CodeAnalysis.AnalyzerUtilities/Microsoft.CodeAnalysis.AnalyzerUtilities.csproj
+++ b/src/Microsoft.CodeAnalysis.AnalyzerUtilities/Microsoft.CodeAnalysis.AnalyzerUtilities.csproj
@@ -14,7 +14,7 @@
 
     <!-- RS0026: Avoid public API overloads with differences in optional parameters -->
     <NoWarn>$(NoWarn);RS0026</NoWarn>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <Import Project="..\Utilities\Compiler\Analyzer.Utilities.projitems" Label="Shared" />
   <Import Project="..\Utilities\FlowAnalysis\FlowAnalysis.Utilities.projitems" Label="Shared" />
diff --git a/src/Microsoft.CodeAnalysis.Analyzers/CSharp/Microsoft.CodeAnalysis.CSharp.Analyzers.csproj b/src/Microsoft.CodeAnalysis.Analyzers/CSharp/Microsoft.CodeAnalysis.CSharp.Analyzers.csproj
index e243f73824..7aba196f81 100644
--- a/src/Microsoft.CodeAnalysis.Analyzers/CSharp/Microsoft.CodeAnalysis.CSharp.Analyzers.csproj
+++ b/src/Microsoft.CodeAnalysis.Analyzers/CSharp/Microsoft.CodeAnalysis.CSharp.Analyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Microsoft.CodeAnalysis.Analyzers.csproj" />
diff --git a/src/Microsoft.CodeAnalysis.Analyzers/Core/Microsoft.CodeAnalysis.Analyzers.csproj b/src/Microsoft.CodeAnalysis.Analyzers/Core/Microsoft.CodeAnalysis.Analyzers.csproj
index d2e367a068..e99f0a10ff 100644
--- a/src/Microsoft.CodeAnalysis.Analyzers/Core/Microsoft.CodeAnalysis.Analyzers.csproj
+++ b/src/Microsoft.CodeAnalysis.Analyzers/Core/Microsoft.CodeAnalysis.Analyzers.csproj
@@ -8,7 +8,7 @@
       Restore would conclude that there is a cyclic dependency between Microsoft.CodeAnalysis and Microsoft.CodeAnalysis.Analyzers.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\..\Microsoft.CodeAnalysis.BannedApiAnalyzers\Core\DocumentationCommentIdParser.cs" Link="DocumentationCommentIdParser.cs" />
diff --git a/src/Microsoft.CodeAnalysis.Analyzers/UnitTests/Microsoft.CodeAnalysis.Analyzers.UnitTests.csproj b/src/Microsoft.CodeAnalysis.Analyzers/UnitTests/Microsoft.CodeAnalysis.Analyzers.UnitTests.csproj
index 36440920cb..f320588f73 100644
--- a/src/Microsoft.CodeAnalysis.Analyzers/UnitTests/Microsoft.CodeAnalysis.Analyzers.UnitTests.csproj
+++ b/src/Microsoft.CodeAnalysis.Analyzers/UnitTests/Microsoft.CodeAnalysis.Analyzers.UnitTests.csproj
@@ -5,7 +5,7 @@
     <ServerGarbageCollection>true</ServerGarbageCollection>
     <!-- Executable code, so set this in non-source build or repo source-build. Full
          source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Microsoft.CodeAnalysis.Analyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.Analyzers.vbproj b/src/Microsoft.CodeAnalysis.Analyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.Analyzers.vbproj
index c397f53a9b..dc99d9ca69 100644
--- a/src/Microsoft.CodeAnalysis.Analyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.Analyzers.vbproj
+++ b/src/Microsoft.CodeAnalysis.Analyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.Analyzers.vbproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForCodeAnalysisAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Microsoft.CodeAnalysis.Analyzers.csproj" />
diff --git a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.BannedApiAnalyzers.csproj b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.BannedApiAnalyzers.csproj
index 5759c097f3..c1fd63bdc4 100644
--- a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.BannedApiAnalyzers.csproj
+++ b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.BannedApiAnalyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/Core/Microsoft.CodeAnalysis.BannedApiAnalyzers.csproj b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/Core/Microsoft.CodeAnalysis.BannedApiAnalyzers.csproj
index 120cf5f4b3..6758d5e546 100644
--- a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/Core/Microsoft.CodeAnalysis.BannedApiAnalyzers.csproj
+++ b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/Core/Microsoft.CodeAnalysis.BannedApiAnalyzers.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the Microsoft.CodeAnalysis.BannedApiAnalyzer package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\..\Roslyn.Diagnostics.Analyzers\Core\RoslynDiagnosticIds.cs" Link="RoslynDiagnosticIds.cs" />
diff --git a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.BannedApiAnalyzers.UnitTests.csproj b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.BannedApiAnalyzers.UnitTests.csproj
index bce76cb5aa..3f7fc73bd9 100644
--- a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.BannedApiAnalyzers.UnitTests.csproj
+++ b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.BannedApiAnalyzers.UnitTests.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.BannedApiAnalyzers.vbproj b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.BannedApiAnalyzers.vbproj
index 92a44dbe1f..7584b961e7 100644
--- a/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.BannedApiAnalyzers.vbproj
+++ b/src/Microsoft.CodeAnalysis.BannedApiAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.BannedApiAnalyzers.vbproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForBannedApiAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.VisualBasic" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
index 121341880e..5702275c85 100644
--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
+++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
@@ -7,7 +7,7 @@
 
     <!-- Avoid ID conflicts with the package project. -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests.csproj
index 51e1a94ae8..2a86398736 100644
--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests.csproj
+++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests/Microsoft.CodeAnalysis.ResxSourceGenerator.UnitTests.csproj
@@ -5,7 +5,7 @@
 
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
index a59512a3c4..9be11e1129 100644
--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
+++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
@@ -7,7 +7,7 @@
 
     <!-- Avoid ID conflicts with the package project. -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
index 35f916d28c..dfb03f47db 100644
--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
+++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
@@ -7,7 +7,7 @@
 
     <!-- Avoid ID conflicts with the package project. -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForResxSourceGenerators)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/NetAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.NetAnalyzers.csproj b/src/NetAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.NetAnalyzers.csproj
index 5323503d4e..8938c81bab 100644
--- a/src/NetAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.NetAnalyzers.csproj
+++ b/src/NetAnalyzers/CSharp/Microsoft.CodeAnalysis.CSharp.NetAnalyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj" />
diff --git a/src/NetAnalyzers/Core/Microsoft.CodeAnalysis.NetAnalyzers.csproj b/src/NetAnalyzers/Core/Microsoft.CodeAnalysis.NetAnalyzers.csproj
index 3cbe41a6ec..bbd73f89f6 100644
--- a/src/NetAnalyzers/Core/Microsoft.CodeAnalysis.NetAnalyzers.csproj
+++ b/src/NetAnalyzers/Core/Microsoft.CodeAnalysis.NetAnalyzers.csproj
@@ -9,7 +9,7 @@
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
     <RootNamespace></RootNamespace>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="Microsoft.CodeAnalysis.CSharp.NetAnalyzers" />
diff --git a/src/NetAnalyzers/UnitTests/Microsoft.CodeAnalysis.NetAnalyzers.UnitTests.csproj b/src/NetAnalyzers/UnitTests/Microsoft.CodeAnalysis.NetAnalyzers.UnitTests.csproj
index d5560f7056..03b1ec5dda 100644
--- a/src/NetAnalyzers/UnitTests/Microsoft.CodeAnalysis.NetAnalyzers.UnitTests.csproj
+++ b/src/NetAnalyzers/UnitTests/Microsoft.CodeAnalysis.NetAnalyzers.UnitTests.csproj
@@ -4,9 +4,7 @@
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <DefineConstants>$(DefineConstants),NET_ANALYZERS_TEST</DefineConstants>
     <ServerGarbageCollection>true</ServerGarbageCollection>
-    <!-- Executable code, so set this in non-source build or repo source-build. Full
-         source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/NetAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.NetAnalyzers.vbproj b/src/NetAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.NetAnalyzers.vbproj
index 26f729cee4..c6c880e69d 100644
--- a/src/NetAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.NetAnalyzers.vbproj
+++ b/src/NetAnalyzers/VisualBasic/Microsoft.CodeAnalysis.VisualBasic.NetAnalyzers.vbproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForNetAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj" />
diff --git a/src/PerformanceSensitiveAnalyzers/CSharp/Analyzers/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.csproj b/src/PerformanceSensitiveAnalyzers/CSharp/Analyzers/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.csproj
index f8f2fb148c..b2a94395e1 100644
--- a/src/PerformanceSensitiveAnalyzers/CSharp/Analyzers/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.csproj
+++ b/src/PerformanceSensitiveAnalyzers/CSharp/Analyzers/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.CodeFixes" />
diff --git a/src/PerformanceSensitiveAnalyzers/CSharp/CodeFixes/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.CodeFixes.csproj b/src/PerformanceSensitiveAnalyzers/CSharp/CodeFixes/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.CodeFixes.csproj
index cce4334dbd..e58c1ab124 100644
--- a/src/PerformanceSensitiveAnalyzers/CSharp/CodeFixes/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.CodeFixes.csproj
+++ b/src/PerformanceSensitiveAnalyzers/CSharp/CodeFixes/Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers.CodeFixes.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <ReleaseTrackingOptOut>true</ReleaseTrackingOptOut>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.UnitTests" />
diff --git a/src/PerformanceSensitiveAnalyzers/Core/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.csproj b/src/PerformanceSensitiveAnalyzers/Core/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.csproj
index a0f99de7ed..c8cec27a16 100644
--- a/src/PerformanceSensitiveAnalyzers/Core/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.csproj
+++ b/src/PerformanceSensitiveAnalyzers/Core/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the Microsoft.CodeAnalysis.PerformanceSensitive.Analyzers nuget package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPerfSensitiveAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="Microsoft.CodeAnalysis.CSharp.PerformanceSensitiveAnalyzers" />
diff --git a/src/PerformanceSensitiveAnalyzers/UnitTests/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.UnitTests.csproj b/src/PerformanceSensitiveAnalyzers/UnitTests/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.UnitTests.csproj
index e855dba308..8e555d9c5c 100644
--- a/src/PerformanceSensitiveAnalyzers/UnitTests/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.UnitTests.csproj
+++ b/src/PerformanceSensitiveAnalyzers/UnitTests/Microsoft.CodeAnalysis.PerformanceSensitiveAnalyzers.UnitTests.csproj
@@ -9,7 +9,7 @@
     <NoWarn>$(NoWarn);CA2007</NoWarn>
 
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/PerformanceTests/Tests/PerformanceTests.csproj b/src/PerformanceTests/Tests/PerformanceTests.csproj
index d5bfd717c0..4382a24b8c 100644
--- a/src/PerformanceTests/Tests/PerformanceTests.csproj
+++ b/src/PerformanceTests/Tests/PerformanceTests.csproj
@@ -15,7 +15,7 @@
     <Configuration>Release</Configuration>
     <IsPackable>false</IsPackable>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="BenchmarkDotNet" Version="$(BenchmarkDotNetVersion)" />
diff --git a/src/PerformanceTests/Utilities/CSharp/CSharpPerfUtilities.csproj b/src/PerformanceTests/Utilities/CSharp/CSharpPerfUtilities.csproj
index 1e97847aa3..ffa85902cb 100644
--- a/src/PerformanceTests/Utilities/CSharp/CSharpPerfUtilities.csproj
+++ b/src/PerformanceTests/Utilities/CSharp/CSharpPerfUtilities.csproj
@@ -4,8 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <NonShipping>true</NonShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/PerformanceTests/Utilities/Common/CommonPerfUtilities.csproj b/src/PerformanceTests/Utilities/Common/CommonPerfUtilities.csproj
index 0393687749..48029c855c 100644
--- a/src/PerformanceTests/Utilities/Common/CommonPerfUtilities.csproj
+++ b/src/PerformanceTests/Utilities/Common/CommonPerfUtilities.csproj
@@ -4,8 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <NonShipping>true</NonShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/PerformanceTests/Utilities/ReferenceAssemblies/ReferenceAssemblies.csproj b/src/PerformanceTests/Utilities/ReferenceAssemblies/ReferenceAssemblies.csproj
index 079c1c076a..bba887dbbe 100644
--- a/src/PerformanceTests/Utilities/ReferenceAssemblies/ReferenceAssemblies.csproj
+++ b/src/PerformanceTests/Utilities/ReferenceAssemblies/ReferenceAssemblies.csproj
@@ -5,8 +5,7 @@
     <IsPackable>false</IsPackable>
     <NonShipping>true</NonShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/PerformanceTests/Utilities/VisualBasic/VisualBasicPerfUtilities.csproj b/src/PerformanceTests/Utilities/VisualBasic/VisualBasicPerfUtilities.csproj
index 3cfe912d09..a60f2bdd98 100644
--- a/src/PerformanceTests/Utilities/VisualBasic/VisualBasicPerfUtilities.csproj
+++ b/src/PerformanceTests/Utilities/VisualBasic/VisualBasicPerfUtilities.csproj
@@ -4,8 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <NonShipping>true</NonShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/PublicApiAnalyzers/Core/Analyzers/Microsoft.CodeAnalysis.PublicApiAnalyzers.csproj b/src/PublicApiAnalyzers/Core/Analyzers/Microsoft.CodeAnalysis.PublicApiAnalyzers.csproj
index ea9ae2ace5..dc0eb0a536 100644
--- a/src/PublicApiAnalyzers/Core/Analyzers/Microsoft.CodeAnalysis.PublicApiAnalyzers.csproj
+++ b/src/PublicApiAnalyzers/Core/Analyzers/Microsoft.CodeAnalysis.PublicApiAnalyzers.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the Microsoft.CodeAnalysis.PublicApiAnalyzer package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPublicApiAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPublicApiAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/PublicApiAnalyzers/Core/CodeFixes/Microsoft.CodeAnalysis.PublicApiAnalyzers.CodeFixes.csproj b/src/PublicApiAnalyzers/Core/CodeFixes/Microsoft.CodeAnalysis.PublicApiAnalyzers.CodeFixes.csproj
index 9eba43c28c..3a5057c2c9 100644
--- a/src/PublicApiAnalyzers/Core/CodeFixes/Microsoft.CodeAnalysis.PublicApiAnalyzers.CodeFixes.csproj
+++ b/src/PublicApiAnalyzers/Core/CodeFixes/Microsoft.CodeAnalysis.PublicApiAnalyzers.CodeFixes.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the DotNetAnalyzers.PublicApiAnalyzer.CodeFixes package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForPublicApiAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForPublicApiAnalyzers)</MicrosoftCodeAnalysisVersion>
     <ReleaseTrackingOptOut>true</ReleaseTrackingOptOut>
   </PropertyGroup>
 
diff --git a/src/PublicApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.PublicApiAnalyzers.UnitTests.csproj b/src/PublicApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.PublicApiAnalyzers.UnitTests.csproj
index a6fa953a9a..c31db32ed3 100644
--- a/src/PublicApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.PublicApiAnalyzers.UnitTests.csproj
+++ b/src/PublicApiAnalyzers/UnitTests/Microsoft.CodeAnalysis.PublicApiAnalyzers.UnitTests.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj b/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
index 82c5ae4867..d1bb076428 100644
--- a/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
+++ b/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Roslyn.Diagnostics.Analyzers.csproj" />
diff --git a/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj b/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
index 60450aee0e..144338a28e 100644
--- a/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
+++ b/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the Roslyn.Diagnostics.Analyzers package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="Roslyn.Diagnostics.CSharp.Analyzers" />
diff --git a/src/Roslyn.Diagnostics.Analyzers/UnitTests/Roslyn.Diagnostics.Analyzers.UnitTests.csproj b/src/Roslyn.Diagnostics.Analyzers/UnitTests/Roslyn.Diagnostics.Analyzers.UnitTests.csproj
index fa6476ffba..4a06251889 100644
--- a/src/Roslyn.Diagnostics.Analyzers/UnitTests/Roslyn.Diagnostics.Analyzers.UnitTests.csproj
+++ b/src/Roslyn.Diagnostics.Analyzers/UnitTests/Roslyn.Diagnostics.Analyzers.UnitTests.csproj
@@ -3,9 +3,7 @@
   <PropertyGroup>
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
-    <!-- Executable code, so set this in non-source build or repo source-build. Full
-         source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj b/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
index 0dd8b95aa0..9b8a84818a 100644
--- a/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
+++ b/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Roslyn.Diagnostics.Analyzers.csproj" />
diff --git a/src/Test.Utilities/Test.Utilities.csproj b/src/Test.Utilities/Test.Utilities.csproj
index 060956ac04..af3443556d 100644
--- a/src/Test.Utilities/Test.Utilities.csproj
+++ b/src/Test.Utilities/Test.Utilities.csproj
@@ -5,8 +5,7 @@
     <NonShipping>true</NonShipping>
     <IsShipping>false</IsShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <PropertyGroup>
     <DefineConstants>TEST_UTILITIES</DefineConstants>
diff --git a/src/Text.Analyzers/CSharp/Text.CSharp.Analyzers.csproj b/src/Text.Analyzers/CSharp/Text.CSharp.Analyzers.csproj
index a54f95ef4a..6a34f46d13 100644
--- a/src/Text.Analyzers/CSharp/Text.CSharp.Analyzers.csproj
+++ b/src/Text.Analyzers/CSharp/Text.CSharp.Analyzers.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Text.Analyzers.csproj" />
diff --git a/src/Text.Analyzers/Core/Text.Analyzers.csproj b/src/Text.Analyzers/Core/Text.Analyzers.csproj
index ac6af61b51..ae6473a0a1 100644
--- a/src/Text.Analyzers/Core/Text.Analyzers.csproj
+++ b/src/Text.Analyzers/Core/Text.Analyzers.csproj
@@ -7,7 +7,7 @@
       Restore would conclude that there is a cyclic dependency between us and the Text.Analyzers nuget package.
     -->
     <PackageId>*$(MSBuildProjectFile)*</PackageId>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <None Remove="Dictionary.dic" />
diff --git a/src/Text.Analyzers/UnitTests/Text.Analyzers.UnitTests.csproj b/src/Text.Analyzers/UnitTests/Text.Analyzers.UnitTests.csproj
index 20ec1e1354..a8ea4987f4 100644
--- a/src/Text.Analyzers/UnitTests/Text.Analyzers.UnitTests.csproj
+++ b/src/Text.Analyzers/UnitTests/Text.Analyzers.UnitTests.csproj
@@ -3,9 +3,7 @@
   <PropertyGroup>
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
-    <!-- Executable code, so set this in non-source build or repo source-build. Full
-         source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTests)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\Test.Utilities\Test.Utilities.csproj" />
diff --git a/src/Text.Analyzers/VisualBasic/Text.VisualBasic.Analyzers.vbproj b/src/Text.Analyzers/VisualBasic/Text.VisualBasic.Analyzers.vbproj
index e129dbfbca..716a6f06af 100644
--- a/src/Text.Analyzers/VisualBasic/Text.VisualBasic.Analyzers.vbproj
+++ b/src/Text.Analyzers/VisualBasic/Text.VisualBasic.Analyzers.vbproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForTextAnalyzers)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Text.Analyzers.csproj" />
diff --git a/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj b/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
index 6b2b8fb0e3..7741e2a263 100644
--- a/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
+++ b/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
@@ -5,9 +5,7 @@
     <NonShipping>true</NonShipping>
     <UseAppHost>false</UseAppHost>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <!-- Executable code, so set this in non-source build or repo source-build. Full
-         source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\..\Microsoft.CodeAnalysis.Analyzers\Core\MetaAnalyzers\ReleaseTrackingHelper.cs" Link="ReleaseTrackingHelper.cs" />
diff --git a/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj b/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
index 850e282425..6f28ff0c00 100644
--- a/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
+++ b/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
@@ -5,9 +5,7 @@
     <NonShipping>true</NonShipping>
     <UseAppHost>false</UseAppHost>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <!-- Executable code, so set this in non-source build or repo source-build. Full
-         source build will use the incoming, pre-set MicrosoftCodeAnalysisVersion. -->
-    <MicrosoftCodeAnalysisVersion Condition="'$(DotNetBuildSourceOnly)' != 'true' or '$(DotNetBuildOrchestrator)' != 'true'">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Tools/Metrics/Metrics.Legacy.csproj b/src/Tools/Metrics/Metrics.Legacy.csproj
index e2fb94e01f..10a5db6247 100644
--- a/src/Tools/Metrics/Metrics.Legacy.csproj
+++ b/src/Tools/Metrics/Metrics.Legacy.csproj
@@ -8,8 +8,7 @@
     <!-- Disable 'CS0436' ambiguous type warnings due to transitive reference to Microsoft.CodeAnalysis.AnalyzerUtilities.dll coming from Features package reference. -->
     <NoWarn>$(NoWarn);CS0436</NoWarn>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForMetrics)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForMetrics)</MicrosoftCodeAnalysisVersion>
     <VersionPrefix>$(MetricsVersionPrefix)</VersionPrefix>
   </PropertyGroup>
   <Import Project="..\..\Utilities\Compiler\Analyzer.Utilities.projitems" Label="Shared" />
diff --git a/src/Tools/Metrics/Metrics.csproj b/src/Tools/Metrics/Metrics.csproj
index 9a9739240f..20efeeb25e 100644
--- a/src/Tools/Metrics/Metrics.csproj
+++ b/src/Tools/Metrics/Metrics.csproj
@@ -7,8 +7,7 @@
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
     <!-- Disable 'CS0436' ambiguous type warnings due to transitive reference to Microsoft.CodeAnalysis.AnalyzerUtilities.dll coming from Features package reference. -->
     <NoWarn>$(NoWarn);CS0436</NoWarn>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForMetrics)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForMetrics)</MicrosoftCodeAnalysisVersion>
     <VersionPrefix>$(MetricsVersionPrefix)</VersionPrefix>
   </PropertyGroup>
   <Import Project="..\..\Utilities\Compiler\Analyzer.Utilities.projitems" Label="Shared" />
diff --git a/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj b/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
index 9560abfbe1..638258fb42 100644
--- a/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
+++ b/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
@@ -4,8 +4,7 @@
     <TargetFramework>$(NetCurrent)</TargetFramework>
     <NonShipping>true</NonShipping>
     <ExcludeFromSourceOnlyBuild>true</ExcludeFromSourceOnlyBuild>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForToolsAndUtilities)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis" Version="$(MicrosoftCodeAnalysisVersion)" />
diff --git a/src/Tools/RulesetToEditorconfigConverter/Source/RulesetToEditorconfigConverter.csproj b/src/Tools/RulesetToEditorconfigConverter/Source/RulesetToEditorconfigConverter.csproj
index 3fe9223bb0..31db0f91fa 100644
--- a/src/Tools/RulesetToEditorconfigConverter/Source/RulesetToEditorconfigConverter.csproj
+++ b/src/Tools/RulesetToEditorconfigConverter/Source/RulesetToEditorconfigConverter.csproj
@@ -5,8 +5,7 @@
     <GenerateDocumentationFile>false</GenerateDocumentationFile>
     <IsShipping>true</IsShipping>
     <ReleaseTrackingOptOut>true</ReleaseTrackingOptOut>
-    <!-- Excluded from source build. Otherwise this should be conditionalized to only be set when DotNetBuildSourceOnly != true -->
-    <MicrosoftCodeAnalysisVersion>$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
+    <MicrosoftCodeAnalysisVersion Condition="'$(MicrosoftCodeAnalysisVersion)' == ''">$(MicrosoftCodeAnalysisVersionForExecution)</MicrosoftCodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\..\..\Utilities\Compiler\Extensions\ReportDiagnosticExtensions.cs" Link="ReportDiagnosticExtensions.cs" />