diff --git a/app/access/tests/functional/person/test_functional_person_serializer.py b/app/access/tests/functional/person/test_functional_person_serializer.py
index 180d8673..159b51b0 100644
--- a/app/access/tests/functional/person/test_functional_person_serializer.py
+++ b/app/access/tests/functional/person/test_functional_person_serializer.py
@@ -1,161 +1,88 @@
 import pytest
 
-from django.test import TestCase
-
 from rest_framework.exceptions import ValidationError
 
-from access.serializers.entity_person import (
-    Person,
-    ModelSerializer
-)
 from access.tests.functional.entity.test_functional_entity_serializer import (
+    MockView,
     EntitySerializerInheritedCases
 )
 
 
 
-class SerializerTestCases(
-    EntitySerializerInheritedCases,
+class PersonSerializerTestCases(
+    EntitySerializerInheritedCases
 ):
 
-    create_model_serializer = ModelSerializer
-    """Serializer to test"""
 
-    duplicate_f_name_l_name_dob: dict = {
-        'f_name': 'fred',
-        'm_name': 'D',
-        'l_name': 'Flinstone',
-        'dob': '2025-04-08',
+    parameterized_test_data: dict = {
+        "model_notes": {
+            'will_create': True,
+        },
+        "f_name": {
+            'will_create': False,
+            'exception_key': 'required'
+        },
+        "m_name": {
+            'will_create': True,
+        },
+        "l_name": {
+            'will_create': False,
+            'exception_key': 'required'
+        },
+        "dob": {
+            'will_create': True,
+        }
     }
 
-    kwargs_create_item_duplicate_f_name_l_name_dob: dict = {
-        'f_name': 'fred',
-        'm_name': 'D',
-        'l_name': 'Flinstone',
-        'dob': '2025-04-08',
-    }
-
-    kwargs_create_item: dict = {
+    valid_data: dict = {
         'f_name': 'Ian',
         'm_name': 'Peter',
         'l_name': 'Funny',
         'dob': '2025-04-08',
     }
-
-    model = Person
-    """Model to test"""
-
-    valid_data: dict = {
-        'f_name': 'Ian',
-        'm_name': 'Peter',
-        'l_name': 'Strange',
-        'dob': '2025-04-08',
-    }
+    """Valid data used by serializer to create object"""
 
 
-
-    def test_serializer_validation_no_f_name_exception(self):
-        """Serializer Validation Check
-
-        Ensure that when creating with valid data and field f_name is missing
-        a validation error occurs.
-        """
-
-        data = self.valid_data.copy()
-
-        del data['f_name']
-
-        with pytest.raises(ValidationError) as err:
-
-            serializer = self.create_model_serializer(
-                data = data
-            )
-
-            serializer.is_valid(raise_exception = True)
-
-        assert err.value.get_codes()['f_name'][0] == 'required'
-
-
-
-    def test_serializer_validation_no_m_name(self):
-        """Serializer Validation Check
-
-        Ensure that when creating with valid data and field f_name is missing
-        no validation error occurs.
-        """
-
-        data = self.valid_data.copy()
-
-        del data['m_name']
-
-        serializer = self.create_model_serializer(
-            data = data
-        )
-
-        assert serializer.is_valid(raise_exception = True)
-
-
-
-    def test_serializer_validation_no_l_name_exception(self):
-        """Serializer Validation Check
-
-        Ensure that when creating with valid data and field l_name is missing
-        a validation error occurs.
-        """
-
-        data = self.valid_data.copy()
-
-        del data['l_name']
-
-        with pytest.raises(ValidationError) as err:
-
-            serializer = self.create_model_serializer(
-                data = data
-            )
-
-            serializer.is_valid(raise_exception = True)
-
-        assert err.value.get_codes()['l_name'][0] == 'required'
-
-
-
-    def test_serializer_validation_no_dob(self):
-        """Serializer Validation Check
-
-        Ensure that when creating with valid data and field dob is missing
-        no validation error occurs.
-        """
-
-        data = self.valid_data.copy()
-
-        del data['dob']
-
-        serializer = self.create_model_serializer(
-            data = data
-        )
-
-        assert serializer.is_valid(raise_exception = True)
-
-
-
-    def test_serializer_validation_duplicate_f_name_l_name_dob(self):
+    def test_serializer_validation_duplicate_f_name_l_name_dob(self, model, create_serializer):
         """Serializer Validation Check
 
         Ensure that when creating with valid data and fields f_name, l_name and
         dob already exists in the db a validation error occurs.
         """
 
-        self.model.objects.create(
-            organization = self.organization,
-            **self.kwargs_create_item_duplicate_f_name_l_name_dob
+        valid_data = self.valid_data.copy()
+
+        valid_data['f_name'] = 'duplicate'
+
+        valid_data['organization'] = self.organization
+
+        obj = model.objects.create(
+            **valid_data
         )
 
-        data = self.duplicate_f_name_l_name_dob.copy()
+        valid_data['organization'] = self.organization.id
+
+        if 'email' in valid_data:    # Contact Entity
+
+            valid_data['email'] = 'abc@xyz.qwe'
+
+        if 'name' in valid_data:    # Company Entity
+
+            valid_data['name'] = 'diff'
+
+        if 'employee_number' in valid_data:    # Employee Entity
+
+            valid_data['employee_number'] = 13579
+
+        view_set = MockView()
 
         with pytest.raises(ValidationError) as err:
 
-            serializer = self.create_model_serializer(
-                data = data
+            serializer = create_serializer(
+                context = {
+                    'view': view_set,
+                },
+                data = valid_data
             )
 
             serializer.is_valid(raise_exception = True)
@@ -167,64 +94,18 @@ class SerializerTestCases(
 
 
 class PersonSerializerInheritedCases(
-    SerializerTestCases,
+    PersonSerializerTestCases,
 ):
 
-    create_model_serializer = None
-    """Serializer to test"""
-
-    duplicate_f_name_l_name_dob: dict = None
-    """ Duplicate model serializer dict
-    
-    used for testing for duplicate f_name, l_name and dob fields.
-    """
-
-    kwargs_create_item: dict = None
-    """ Model kwargs to create item"""
-
-    kwargs_create_item_duplicate_f_name_l_name_dob: dict = None
-    """model kwargs to create object
-
-    **None:** Ensure that the fields of sub-model to person do not match
-    `self.duplicate_f_name_l_name_dob`. if they do the wrong exception will be thrown.
-
-    used for testing for duplicate f_name, l_name and dob fields.
-    """
-
-    model = None
-    """Model to test"""
+    parameterized_test_data: dict = None
 
     valid_data: dict = None
     """Valid data used by serializer to create object"""
 
 
-    @classmethod
-    def setUpTestData(self):
-        """Setup Test"""
 
-        self.duplicate_f_name_l_name_dob.update(
-            super().duplicate_f_name_l_name_dob
-        )
-
-        self.kwargs_create_item_duplicate_f_name_l_name_dob.update(
-            super().kwargs_create_item_duplicate_f_name_l_name_dob
-        )
-
-        self.kwargs_create_item.update(
-            super().kwargs_create_item
-        )
-
-        self.valid_data.update(
-            super().valid_data
-        )
-
-        super().setUpTestData()
-
-
-
-class PersonSerializerTest(
-    SerializerTestCases,
-    TestCase,
+class PersonSerializerPyTest(
+    PersonSerializerTestCases,
 ):
 
-    pass
+    parameterized_test_data: dict = None