diff --git a/samples/AzureSample.ResourceManager.Sample/src/Generated/Models/AzureSampleResourceManagerSampleContext.cs b/samples/AzureSample.ResourceManager.Sample/src/Generated/Models/AzureSampleResourceManagerSampleContext.cs
index bcdb99a68d3..9fd62cef858 100644
--- a/samples/AzureSample.ResourceManager.Sample/src/Generated/Models/AzureSampleResourceManagerSampleContext.cs
+++ b/samples/AzureSample.ResourceManager.Sample/src/Generated/Models/AzureSampleResourceManagerSampleContext.cs
@@ -7,6 +7,7 @@
 
 using System.ClientModel.Primitives;
 using Azure.ResourceManager.Models;
+using Azure.ResourceManager.Resources.Models;
 using AzureSample.ResourceManager.Sample.Models;
 
 namespace AzureSample.ResourceManager.Sample
@@ -47,6 +48,7 @@ namespace AzureSample.ResourceManager.Sample
     [ModelReaderWriterBuildable(typeof(DiffDiskSettings))]
     [ModelReaderWriterBuildable(typeof(DiskEncryptionSettings))]
     [ModelReaderWriterBuildable(typeof(DiskInstanceView))]
+    [ModelReaderWriterBuildable(typeof(ExtendedLocation))]
     [ModelReaderWriterBuildable(typeof(ImageData))]
     [ModelReaderWriterBuildable(typeof(ImageDataDisk))]
     [ModelReaderWriterBuildable(typeof(ImageDisk))]
@@ -67,6 +69,7 @@ namespace AzureSample.ResourceManager.Sample
     [ModelReaderWriterBuildable(typeof(LogAnalyticsInputBase))]
     [ModelReaderWriterBuildable(typeof(MaintenanceRedeployStatus))]
     [ModelReaderWriterBuildable(typeof(ManagedDiskParameters))]
+    [ModelReaderWriterBuildable(typeof(ManagedServiceIdentity))]
     [ModelReaderWriterBuildable(typeof(NetworkInterfaceReference))]
     [ModelReaderWriterBuildable(typeof(OrchestrationServiceStateContent))]
     [ModelReaderWriterBuildable(typeof(OrchestrationServiceSummary))]
@@ -91,7 +94,8 @@ namespace AzureSample.ResourceManager.Sample
     [ModelReaderWriterBuildable(typeof(SshPublicKeyResource))]
     [ModelReaderWriterBuildable(typeof(SshPublicKeysGroupListResult))]
     [ModelReaderWriterBuildable(typeof(StorageProfile))]
-    [ModelReaderWriterBuildable(typeof(SubResource))]
+    [ModelReaderWriterBuildable(typeof(Models.SubResource))]
+    [ModelReaderWriterBuildable(typeof(Azure.ResourceManager.Resources.Models.SubResource))]
     [ModelReaderWriterBuildable(typeof(SubResourceReadOnly))]
     [ModelReaderWriterBuildable(typeof(SubResourceWithColocationStatus))]
     [ModelReaderWriterBuildable(typeof(SubscriptionResourceGetVirtualMachineImagesOptions))]
@@ -103,6 +107,7 @@ namespace AzureSample.ResourceManager.Sample
     [ModelReaderWriterBuildable(typeof(UpgradeOperationHistoricalStatusInfoProperties))]
     [ModelReaderWriterBuildable(typeof(UpgradeOperationHistoryStatus))]
     [ModelReaderWriterBuildable(typeof(UpgradePolicy))]
+    [ModelReaderWriterBuildable(typeof(UserAssignedIdentity))]
     [ModelReaderWriterBuildable(typeof(VaultCertificate))]
     [ModelReaderWriterBuildable(typeof(VaultSecretGroup))]
     [ModelReaderWriterBuildable(typeof(VirtualMachineAgentInstanceView))]
@@ -179,6 +184,7 @@ namespace AzureSample.ResourceManager.Sample
     [ModelReaderWriterBuildable(typeof(VmScaleSetConvertToSinglePlacementGroupContent))]
     [ModelReaderWriterBuildable(typeof(WindowsConfiguration))]
     [ModelReaderWriterBuildable(typeof(WinRMListener))]
+    [ModelReaderWriterBuildable(typeof(WritableSubResource))]
     public partial class AzureSampleResourceManagerSampleContext : ModelReaderWriterContext
     {
     }
diff --git a/src/AutoRest.CSharp/Common/Generation/Writers/ModelReaderWriterContextWriter.cs b/src/AutoRest.CSharp/Common/Generation/Writers/ModelReaderWriterContextWriter.cs
index 441cbe8c30d..c8edd7b70df 100644
--- a/src/AutoRest.CSharp/Common/Generation/Writers/ModelReaderWriterContextWriter.cs
+++ b/src/AutoRest.CSharp/Common/Generation/Writers/ModelReaderWriterContextWriter.cs
@@ -157,6 +157,12 @@ private bool ImplementsIPersistableModel(CSharpType type, Dictionary<CSharpType,
                 return true;
             }
 
+            // If the type is SystemObjectType, it should always implement IPersistableModel or IJsonModel
+            if (!type.IsFrameworkType && type.Implementation is SystemObjectType)
+            {
+                return true;
+            }
+
             if (!type.IsFrameworkType || type.IsEnum || type.IsLiteral)
                 return false;
 
diff --git a/test/CadlRanchProjects/azure/core/basic/src/Generated/Models/_Specs_AzureCoreBasicContext.cs b/test/CadlRanchProjects/azure/core/basic/src/Generated/Models/_Specs_AzureCoreBasicContext.cs
index 232fb3907a7..d98bc76c723 100644
--- a/test/CadlRanchProjects/azure/core/basic/src/Generated/Models/_Specs_AzureCoreBasicContext.cs
+++ b/test/CadlRanchProjects/azure/core/basic/src/Generated/Models/_Specs_AzureCoreBasicContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Specs_.Azure.Core.Basic.Models;
 
 namespace _Specs_.Azure.Core.Basic
@@ -14,6 +15,7 @@ namespace _Specs_.Azure.Core.Basic
     /// Context class which will be filled in by the System.ClientModel.SourceGeneration.
     /// For more information see 'https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/System.ClientModel/src/docs/ModelReaderWriterContext.md'
     /// </summary>
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(User))]
     [ModelReaderWriterBuildable(typeof(UserList))]
     [ModelReaderWriterBuildable(typeof(UserOrder))]
diff --git a/test/CadlRanchProjects/azure/core/lro/rpc/src/Generated/Models/_AzureLroRpcContext.cs b/test/CadlRanchProjects/azure/core/lro/rpc/src/Generated/Models/_AzureLroRpcContext.cs
index 92ba5759636..ace4c49d708 100644
--- a/test/CadlRanchProjects/azure/core/lro/rpc/src/Generated/Models/_AzureLroRpcContext.cs
+++ b/test/CadlRanchProjects/azure/core/lro/rpc/src/Generated/Models/_AzureLroRpcContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Azure.Lro.Rpc.Models;
 
 namespace _Azure.Lro.Rpc
@@ -16,6 +17,7 @@ namespace _Azure.Lro.Rpc
     /// </summary>
     [ModelReaderWriterBuildable(typeof(GenerationOptions))]
     [ModelReaderWriterBuildable(typeof(GenerationResult))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     public partial class _AzureLroRpcContext : ModelReaderWriterContext
     {
     }
diff --git a/test/CadlRanchProjects/azure/core/lro/standard/src/Generated/Models/_AzureLroStandardContext.cs b/test/CadlRanchProjects/azure/core/lro/standard/src/Generated/Models/_AzureLroStandardContext.cs
index d6b478ef4d4..99c1e707581 100644
--- a/test/CadlRanchProjects/azure/core/lro/standard/src/Generated/Models/_AzureLroStandardContext.cs
+++ b/test/CadlRanchProjects/azure/core/lro/standard/src/Generated/Models/_AzureLroStandardContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Azure.Lro.Standard.Models;
 
 namespace _Azure.Lro.Standard
@@ -15,6 +16,7 @@ namespace _Azure.Lro.Standard
     /// For more information see 'https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/System.ClientModel/src/docs/ModelReaderWriterContext.md'
     /// </summary>
     [ModelReaderWriterBuildable(typeof(ExportedUser))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(User))]
     public partial class _AzureLroStandardContext : ModelReaderWriterContext
     {
diff --git a/test/CadlRanchProjects/azure/core/page/src/Generated/Models/_Specs_AzureCorePageContext.cs b/test/CadlRanchProjects/azure/core/page/src/Generated/Models/_Specs_AzureCorePageContext.cs
index c15bae014f6..54af84f6fdc 100644
--- a/test/CadlRanchProjects/azure/core/page/src/Generated/Models/_Specs_AzureCorePageContext.cs
+++ b/test/CadlRanchProjects/azure/core/page/src/Generated/Models/_Specs_AzureCorePageContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Specs_.Azure.Core.Page.Models;
 
 namespace _Specs_.Azure.Core.Page
@@ -16,6 +17,7 @@ namespace _Specs_.Azure.Core.Page
     /// </summary>
     [ModelReaderWriterBuildable(typeof(FirstItem))]
     [ModelReaderWriterBuildable(typeof(ListItemInputBody))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(SecondItem))]
     [ModelReaderWriterBuildable(typeof(User))]
     [ModelReaderWriterBuildable(typeof(UserOrder))]
diff --git a/test/CadlRanchProjects/azure/core/traits/src/Generated/Models/_Specs_AzureCoreTraitsContext.cs b/test/CadlRanchProjects/azure/core/traits/src/Generated/Models/_Specs_AzureCoreTraitsContext.cs
index 013fc7d7a10..4b05a0f209e 100644
--- a/test/CadlRanchProjects/azure/core/traits/src/Generated/Models/_Specs_AzureCoreTraitsContext.cs
+++ b/test/CadlRanchProjects/azure/core/traits/src/Generated/Models/_Specs_AzureCoreTraitsContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Specs_.Azure.Core.Traits.Models;
 
 namespace _Specs_.Azure.Core.Traits
@@ -14,6 +15,7 @@ namespace _Specs_.Azure.Core.Traits
     /// Context class which will be filled in by the System.ClientModel.SourceGeneration.
     /// For more information see 'https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/System.ClientModel/src/docs/ModelReaderWriterContext.md'
     /// </summary>
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(User))]
     [ModelReaderWriterBuildable(typeof(UserActionParam))]
     [ModelReaderWriterBuildable(typeof(UserActionResponse))]
diff --git a/test/CadlRanchProjects/azure/resource-manager/common-properties/src/Generated/Models/_AzureResourceManagerCommonPropertiesContext.cs b/test/CadlRanchProjects/azure/resource-manager/common-properties/src/Generated/Models/_AzureResourceManagerCommonPropertiesContext.cs
index cdd0b2bb040..7809bbf7b2e 100644
--- a/test/CadlRanchProjects/azure/resource-manager/common-properties/src/Generated/Models/_AzureResourceManagerCommonPropertiesContext.cs
+++ b/test/CadlRanchProjects/azure/resource-manager/common-properties/src/Generated/Models/_AzureResourceManagerCommonPropertiesContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using Azure.ResourceManager.Models;
 using _Azure.ResourceManager.CommonProperties.Models;
 
@@ -20,7 +21,10 @@ namespace _Azure.ResourceManager.CommonProperties
     [ModelReaderWriterBuildable(typeof(ConfidentialResourceProperties))]
     [ModelReaderWriterBuildable(typeof(ManagedIdentityTrackedResource))]
     [ModelReaderWriterBuildable(typeof(ManagedIdentityTrackedResourceData))]
+    [ModelReaderWriterBuildable(typeof(ManagedServiceIdentity))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(SystemData))]
+    [ModelReaderWriterBuildable(typeof(UserAssignedIdentity))]
     public partial class _AzureResourceManagerCommonPropertiesContext : ModelReaderWriterContext
     {
     }
diff --git a/test/CadlRanchProjects/azure/resource-manager/non-resource/src/Generated/Models/_AzureResourceManagerNonResourcesContext.cs b/test/CadlRanchProjects/azure/resource-manager/non-resource/src/Generated/Models/_AzureResourceManagerNonResourcesContext.cs
index b45995fc4e0..6b0b9680592 100644
--- a/test/CadlRanchProjects/azure/resource-manager/non-resource/src/Generated/Models/_AzureResourceManagerNonResourcesContext.cs
+++ b/test/CadlRanchProjects/azure/resource-manager/non-resource/src/Generated/Models/_AzureResourceManagerNonResourcesContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using _Azure.ResourceManager.NonResources.Models;
 
 namespace _Azure.ResourceManager.NonResources
@@ -15,6 +16,7 @@ namespace _Azure.ResourceManager.NonResources
     /// For more information see 'https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/System.ClientModel/src/docs/ModelReaderWriterContext.md'
     /// </summary>
     [ModelReaderWriterBuildable(typeof(NonResource))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     public partial class _AzureResourceManagerNonResourcesContext : ModelReaderWriterContext
     {
     }
diff --git a/test/CadlRanchProjects/azure/resource-manager/resources/src/Generated/Models/_AzureResourceManagerResourcesContext.cs b/test/CadlRanchProjects/azure/resource-manager/resources/src/Generated/Models/_AzureResourceManagerResourcesContext.cs
index 9d6cc560aee..2c2bbf76564 100644
--- a/test/CadlRanchProjects/azure/resource-manager/resources/src/Generated/Models/_AzureResourceManagerResourcesContext.cs
+++ b/test/CadlRanchProjects/azure/resource-manager/resources/src/Generated/Models/_AzureResourceManagerResourcesContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using Azure.ResourceManager.Models;
 using _Azure.ResourceManager.Resources.Models;
 
@@ -25,6 +26,7 @@ namespace _Azure.ResourceManager.Resources
     [ModelReaderWriterBuildable(typeof(NestedProxyResourceData))]
     [ModelReaderWriterBuildable(typeof(NestedProxyResourceProperties))]
     [ModelReaderWriterBuildable(typeof(NotificationDetails))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(SingletonTrackedResource))]
     [ModelReaderWriterBuildable(typeof(SingletonTrackedResourceData))]
     [ModelReaderWriterBuildable(typeof(SingletonTrackedResourceProperties))]
diff --git a/test/TestProjects/Authoring-TypeSpec/src/Generated/Models/AuthoringTypeSpecContext.cs b/test/TestProjects/Authoring-TypeSpec/src/Generated/Models/AuthoringTypeSpecContext.cs
index fbb138d8772..26ce9bb07df 100644
--- a/test/TestProjects/Authoring-TypeSpec/src/Generated/Models/AuthoringTypeSpecContext.cs
+++ b/test/TestProjects/Authoring-TypeSpec/src/Generated/Models/AuthoringTypeSpecContext.cs
@@ -7,6 +7,7 @@
 
 using System.ClientModel.Primitives;
 using AuthoringTypeSpec.Models;
+using Azure;
 
 namespace AuthoringTypeSpec
 {
@@ -16,6 +17,7 @@ namespace AuthoringTypeSpec
     /// </summary>
     [ModelReaderWriterBuildable(typeof(DeploymentJob))]
     [ModelReaderWriterBuildable(typeof(JobWarning))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(SwapDeploymentsJob))]
     public partial class AuthoringTypeSpecContext : ModelReaderWriterContext
     {
diff --git a/test/TestProjects/FirstTest-TypeSpec/src/Generated/Models/FirstTestTypeSpecContext.cs b/test/TestProjects/FirstTest-TypeSpec/src/Generated/Models/FirstTestTypeSpecContext.cs
index 0b98eafedb1..193f5af5187 100644
--- a/test/TestProjects/FirstTest-TypeSpec/src/Generated/Models/FirstTestTypeSpecContext.cs
+++ b/test/TestProjects/FirstTest-TypeSpec/src/Generated/Models/FirstTestTypeSpecContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using FirstTestTypeSpec.Models;
 
 namespace FirstTestTypeSpec
@@ -29,6 +30,7 @@ namespace FirstTestTypeSpec
     [ModelReaderWriterBuildable(typeof(ModelWithProjectedEnum))]
     [ModelReaderWriterBuildable(typeof(ModelWithRequiredNullableProperties))]
     [ModelReaderWriterBuildable(typeof(ProjectedModel))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(ReturnsAnonymousModelResponse))]
     [ModelReaderWriterBuildable(typeof(RoundTripModel))]
     [ModelReaderWriterBuildable(typeof(ThereLevelElement))]
diff --git a/test/TestProjects/MgmtCustomizations/src/Generated/Models/MgmtCustomizationsContext.cs b/test/TestProjects/MgmtCustomizations/src/Generated/Models/MgmtCustomizationsContext.cs
index 0a8ff863522..8e075f75b6a 100644
--- a/test/TestProjects/MgmtCustomizations/src/Generated/Models/MgmtCustomizationsContext.cs
+++ b/test/TestProjects/MgmtCustomizations/src/Generated/Models/MgmtCustomizationsContext.cs
@@ -6,6 +6,7 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using Azure.ResourceManager.Models;
 using MgmtCustomizations.Models;
 
@@ -21,6 +22,7 @@ namespace MgmtCustomizations
     [ModelReaderWriterBuildable(typeof(PetStoreData))]
     [ModelReaderWriterBuildable(typeof(PetStoreProperties))]
     [ModelReaderWriterBuildable(typeof(PetStoreResource))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(SystemData))]
     [ModelReaderWriterBuildable(typeof(UnknownPet))]
     public partial class MgmtCustomizationsContext : ModelReaderWriterContext
diff --git a/test/TestProjects/MgmtDiscriminator/src/Generated/Models/MgmtDiscriminatorContext.cs b/test/TestProjects/MgmtDiscriminator/src/Generated/Models/MgmtDiscriminatorContext.cs
index 5c764aabdff..ee8ad29f442 100644
--- a/test/TestProjects/MgmtDiscriminator/src/Generated/Models/MgmtDiscriminatorContext.cs
+++ b/test/TestProjects/MgmtDiscriminator/src/Generated/Models/MgmtDiscriminatorContext.cs
@@ -6,7 +6,9 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using Azure.ResourceManager.Models;
+using Azure.ResourceManager.Resources.Models;
 using MgmtDiscriminator.Models;
 
 namespace MgmtDiscriminator
@@ -45,6 +47,7 @@ namespace MgmtDiscriminator
     [ModelReaderWriterBuildable(typeof(QueryStringMatchConditionParameters))]
     [ModelReaderWriterBuildable(typeof(RemoteAddressMatchConditionParameters))]
     [ModelReaderWriterBuildable(typeof(RequestMethodMatchConditionParameters))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(RoleAssignmentArtifact))]
     [ModelReaderWriterBuildable(typeof(RouteConfigurationOverrideActionParameters))]
     [ModelReaderWriterBuildable(typeof(Shell))]
@@ -62,6 +65,7 @@ namespace MgmtDiscriminator
     [ModelReaderWriterBuildable(typeof(UrlSigningAction))]
     [ModelReaderWriterBuildable(typeof(UrlSigningActionParameters))]
     [ModelReaderWriterBuildable(typeof(UrlSigningParamIdentifier))]
+    [ModelReaderWriterBuildable(typeof(WritableSubResource))]
     public partial class MgmtDiscriminatorContext : ModelReaderWriterContext
     {
     }
diff --git a/test/TestProjects/MgmtTypeSpec/src/Generated/Models/MgmtTypeSpecContext.cs b/test/TestProjects/MgmtTypeSpec/src/Generated/Models/MgmtTypeSpecContext.cs
index 45906b1be41..15786a4bfc7 100644
--- a/test/TestProjects/MgmtTypeSpec/src/Generated/Models/MgmtTypeSpecContext.cs
+++ b/test/TestProjects/MgmtTypeSpec/src/Generated/Models/MgmtTypeSpecContext.cs
@@ -6,7 +6,9 @@
 #nullable disable
 
 using System.ClientModel.Primitives;
+using Azure;
 using Azure.ResourceManager.Models;
+using Azure.ResourceManager.Resources.Models;
 using MgmtTypeSpec.Models;
 
 namespace MgmtTypeSpec
@@ -15,14 +17,18 @@ namespace MgmtTypeSpec
     /// Context class which will be filled in by the System.ClientModel.SourceGeneration.
     /// For more information see 'https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/System.ClientModel/src/docs/ModelReaderWriterContext.md'
     /// </summary>
+    [ModelReaderWriterBuildable(typeof(ExtendedLocation))]
     [ModelReaderWriterBuildable(typeof(FooData))]
     [ModelReaderWriterBuildable(typeof(FooProperties))]
     [ModelReaderWriterBuildable(typeof(FooResource))]
+    [ModelReaderWriterBuildable(typeof(ManagedServiceIdentity))]
     [ModelReaderWriterBuildable(typeof(MgmtTypeSpecPrivateLinkResourceData))]
     [ModelReaderWriterBuildable(typeof(MgmtTypeSpecPrivateLinkResourceProperties))]
     [ModelReaderWriterBuildable(typeof(Models.OperationStatusResult))]
+    [ModelReaderWriterBuildable(typeof(ResponseError))]
     [ModelReaderWriterBuildable(typeof(StartContent))]
     [ModelReaderWriterBuildable(typeof(SystemData))]
+    [ModelReaderWriterBuildable(typeof(UserAssignedIdentity))]
     public partial class MgmtTypeSpecContext : ModelReaderWriterContext
     {
     }