diff --git a/mocha-dotnet/src/lib/Mocha.Core/OmsMethodBuilder.cs b/mocha-dotnet/src/lib/Mocha.Core/OmsMethodBuilder.cs
index cf7e4ba..8051d7c 100644
--- a/mocha-dotnet/src/lib/Mocha.Core/OmsMethodBuilder.cs
+++ b/mocha-dotnet/src/lib/Mocha.Core/OmsMethodBuilder.cs
@@ -153,14 +153,15 @@ public class OmsMethodBuilder
 		return new AssignAttributeMethod(method);
 	}
 
-	public GetRelationshipMethod CreateGetRelationshipMethod(InstanceHandle forClassInstance, string verb, string name, AccessModifier accessModifier, bool isStatic, InstanceHandle returnsRelationship)
+	public GetRelationshipMethod CreateGetRelationshipMethod(InstanceHandle forClassInstance, string verb, string name, AccessModifier accessModifier, bool isStatic, InstanceHandle returnsRelationship, bool singular = false)
 	{
-		return CreateGetRelationshipMethod(forClassInstance, verb, name, accessModifier, isStatic, Guid.NewGuid(), returnsRelationship);
+		return CreateGetRelationshipMethod(forClassInstance, verb, name, accessModifier, isStatic, Guid.NewGuid(), returnsRelationship, singular);
 	}
-	public GetRelationshipMethod CreateGetRelationshipMethod(InstanceHandle forClassInstance, string verb, string name, AccessModifier accessModifier, bool isStatic, Guid globalIdentifier, InstanceHandle returnsRelationship)
+	public GetRelationshipMethod CreateGetRelationshipMethod(InstanceHandle forClassInstance, string verb, string name, AccessModifier accessModifier, bool isStatic, Guid globalIdentifier, InstanceHandle returnsRelationship, bool singular = false)
 	{
 		InstanceHandle method = CreateMethodBase(Oms.GetInstance(KnownInstanceGuids.MethodClasses.GetRelationshipMethod), forClassInstance, verb, name, accessModifier, isStatic, globalIdentifier);
 		Oms.AssignRelationship(method, Oms.GetInstance(KnownRelationshipGuids.Get_Relationship_Method__returns__Relationship), returnsRelationship);
+		Oms.SetAttributeValue(method, Oms.GetInstance(KnownAttributeGuids.Boolean.Singular), singular);
 		return new GetRelationshipMethod(method);
 	}
 
diff --git a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/GetRelationshipTests.cs b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/GetRelationshipTests.cs
index d877340..a957f01 100644
--- a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/GetRelationshipTests.cs
+++ b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/GetRelationshipTests.cs
@@ -24,19 +24,90 @@ public class GetRelationshipTests : MethodTestsBase
 {
 
 	[Test]
-	public void GetRelationshipTest()
+	public void SingularGetRelationshipTestForSingularRelationship()
 	{
 		InstanceHandle c_TestClass = Oms.GetInstance(TEST_CLASS_GUID);
 		InstanceHandle c_TestClass2 = Oms.GetInstance(TEST_CLASS2_GUID);
 
-		OmsMethodBuilder builder = new OmsMethodBuilder(Oms);
+		InstanceHandle i_TestClass = Oms.CreateInstanceOf(c_TestClass);
+		InstanceHandle i_TestClass2 = Oms.CreateInstanceOf(c_TestClass2);
 
-		GetRelationshipMethod method = builder.CreateGetRelationshipMethod(c_TestClass, "get", "Test Class.has Test Class 2", AccessModifier.Public, true, r_Test_Class__has__Test_Class_2);
+		Oms.AssignRelationship(i_TestClass, r_Test_Class__has__Test_Class_2, i_TestClass2);
+
+		OmsMethodBuilder builder = new OmsMethodBuilder(Oms);
+		GetRelationshipMethod method = builder.CreateGetRelationshipMethod(c_TestClass, "get", "Test Class.has Test Class 2", AccessModifier.Public, true, r_Test_Class__has__Test_Class_2, true);
 		ReturnInstanceSetMethodBinding rsmb = builder.CreateReturnInstanceSetMethodBinding(method);
 
 		OmsContext context = Oms.CreateContext();
-		object? value = Oms.Execute(context, rsmb);
-		Assert.That(value, Is.EqualTo(r_Test_Class__has__Test_Class_2));
+		context.SetWorkData(c_TestClass, i_TestClass); // set the `this` parm
+
+		InstanceHandle valueIH = Oms.Execute(context, rsmb);
+		
+		object? value = context.GetWorkData(valueIH);
+		Assert.That(value, Is.EqualTo(i_TestClass2));
+	}
+
+	[Test]
+	public void SingularGetRelationshipTestForNonsingularRelationship()
+	{
+		InstanceHandle c_TestClass = Oms.GetInstance(TEST_CLASS_GUID);
+		InstanceHandle c_TestClass2 = Oms.GetInstance(TEST_CLASS2_GUID);
+
+		InstanceHandle i_TestClass = Oms.CreateInstanceOf(c_TestClass);
+
+		InstanceHandle i_TestClass2_1 = Oms.CreateInstanceOf(c_TestClass2);
+		InstanceHandle i_TestClass2_2 = Oms.CreateInstanceOf(c_TestClass2);
+		InstanceHandle i_TestClass2_3 = Oms.CreateInstanceOf(c_TestClass2);
+
+		InstanceHandle[] TEST_VALUES = new InstanceHandle[] { i_TestClass2_2, i_TestClass2_3, i_TestClass2_1 };
+		Oms.AssignRelationship(i_TestClass, r_Test_Class__has_multiple__Test_Class_2, TEST_VALUES);
+
+		OmsMethodBuilder builder = new OmsMethodBuilder(Oms);
+
+		GetRelationshipMethod method = builder.CreateGetRelationshipMethod(c_TestClass, "take one from", "Test Class.has multiple Test Class 2", AccessModifier.Public, true, r_Test_Class__has_multiple__Test_Class_2, true);
+		ReturnInstanceSetMethodBinding rsmb = builder.CreateReturnInstanceSetMethodBinding(method);
+
+		OmsContext context = Oms.CreateContext();
+		context.SetWorkData(c_TestClass, i_TestClass); // set the `this` parm
+
+		InstanceHandle valueIH = Oms.Execute(context, rsmb);
+		
+		object? value = context.GetWorkData(valueIH);
+		Assert.That(value, Is.EqualTo(TEST_VALUES[0]));
+	}
+
+
+	[Test]
+	public void NonsingularGetRelationshipTest()
+	{
+		InstanceHandle c_TestClass = Oms.GetInstance(TEST_CLASS_GUID);
+		InstanceHandle c_TestClass2 = Oms.GetInstance(TEST_CLASS2_GUID);
+
+		InstanceHandle i_TestClass = Oms.CreateInstanceOf(c_TestClass);
+
+		InstanceHandle i_TestClass2_1 = Oms.CreateInstanceOf(c_TestClass2);
+		InstanceHandle i_TestClass2_2 = Oms.CreateInstanceOf(c_TestClass2);
+		InstanceHandle i_TestClass2_3 = Oms.CreateInstanceOf(c_TestClass2);
+
+		InstanceHandle[] TEST_VALUES = new InstanceHandle[] { i_TestClass2_2, i_TestClass2_3, i_TestClass2_1 };
+		Oms.AssignRelationship(i_TestClass, r_Test_Class__has_multiple__Test_Class_2, TEST_VALUES);
+
+		OmsMethodBuilder builder = new OmsMethodBuilder(Oms);
+
+		GetRelationshipMethod method = builder.CreateGetRelationshipMethod(c_TestClass, "get", "Test Class.has multiple Test Class 2", AccessModifier.Public, true, r_Test_Class__has_multiple__Test_Class_2, false);
+		ReturnInstanceSetMethodBinding rsmb = builder.CreateReturnInstanceSetMethodBinding(method);
+
+		OmsContext context = Oms.CreateContext();
+		context.SetWorkData(c_TestClass, i_TestClass); // set the `this` parm
+
+		InstanceHandle valueIH = Oms.Execute(context, rsmb);
+		
+		object? value_o = context.GetWorkData(valueIH);
+		InstanceHandle[] values = (InstanceHandle[])value_o;
+		for (int i = 0; i < TEST_VALUES.Length; i++)
+		{
+			Assert.That(values[i], Is.EqualTo(TEST_VALUES[i]));
+		}
 	}
 
 	[Test]
diff --git a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/MethodBindingTests.cs b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/MethodBindingTests.cs
index ef1bb91..9a61563 100644
--- a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/MethodBindingTests.cs
+++ b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTests/MethodBindingTests.cs
@@ -47,17 +47,14 @@ public class MethodBindingTests : MethodTestsBase
 	[Test]
 	public void BRMBInheritsFromMethodBinding()
 	{
-		/*
 		OmsMethodBuilder mb = new OmsMethodBuilder(Oms);
 		InstanceHandle c_MethodBinding = Oms.GetInstance(KnownInstanceGuids.Classes.MethodBinding);
 		InstanceHandle a_Text = Oms.GetInstance(KnownAttributeGuids.Text.Value);
 
-		MethodReturningAttribute dummy = mb.CreateGetAttributeMethod(c_TestClass, "get", "Test Attribute", a_Text);
+		MethodBuildingResponse dummy = mb.CreateBuildUIResponseMethod(c_TestClass, "get", "Test Attribute", AccessModifier.Public, false, InstanceHandle.Empty);
 
-		InstanceHandle handle = mb.CreateReturnAttributeMethodBinding(dummy).Handle;
+		InstanceHandle handle = mb.CreateBuildResponseMethodBinding(dummy).Handle;
 		Assert.That(Oms.IsInstanceOf(handle, c_MethodBinding));
-		*/
-		Assert.Ignore();
 	}
 	[Test]
 	public void RWMBInheritsFromMethodBinding()
diff --git a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTestsBase.cs b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTestsBase.cs
index 85a099d..96c4c35 100644
--- a/mocha-dotnet/tests/Mocha.Core.Tests/MethodTestsBase.cs
+++ b/mocha-dotnet/tests/Mocha.Core.Tests/MethodTestsBase.cs
@@ -27,9 +27,12 @@ public abstract class MethodTestsBase : OmsTestsBase
 {
 	Guid gid_r_Test_Class__has__Test_Class_2 = new Guid("{a5b67aad-e46f-4673-b339-77417396b2fe}");
 	Guid gid_r_Test_Class_2__for__Test_Class = new Guid("{2864dfd9-0313-4801-96bf-b9be99ea172d}");
+	Guid gid_r_Test_Class__has_multiple__Test_Class_2 = new Guid("{a5b67aad-e46f-4673-b339-77417396b2fe}");
+	Guid gid_r_Test_Class_2__multiple_for__Test_Class = new Guid("{2864dfd9-0313-4801-96bf-b9be99ea172d}");
 	
 	protected InstanceHandle c_TestClass, c_TestClass2;
 	protected InstanceHandle r_Test_Class__has__Test_Class_2, r_Test_Class_2__for__Test_Class;
+	protected InstanceHandle r_Test_Class__has_multiple__Test_Class_2, r_Test_Class_2__multiple_for__Test_Class;
 
     protected override void AfterSetup()
     {
@@ -39,5 +42,6 @@ public abstract class MethodTestsBase : OmsTestsBase
 		c_TestClass2 = Oms.GetInstance(TEST_CLASS2_GUID);
 		
 		r_Test_Class__has__Test_Class_2 = Oms.CreateRelationship(c_TestClass, "has", c_TestClass2, gid_r_Test_Class__has__Test_Class_2, true, "for", gid_r_Test_Class_2__for__Test_Class, out r_Test_Class_2__for__Test_Class);
+		r_Test_Class__has_multiple__Test_Class_2 = Oms.CreateRelationship(c_TestClass, "has multiple", c_TestClass2, gid_r_Test_Class__has_multiple__Test_Class_2, false, "multiple for", gid_r_Test_Class_2__multiple_for__Test_Class, out r_Test_Class_2__multiple_for__Test_Class);
     }
 }
\ No newline at end of file