diff --git a/pay-api/src/pay_api/models/non_sufficient_funds.py b/pay-api/src/pay_api/models/non_sufficient_funds.py
index fee5c5d21..b87af99e4 100644
--- a/pay-api/src/pay_api/models/non_sufficient_funds.py
+++ b/pay-api/src/pay_api/models/non_sufficient_funds.py
@@ -54,6 +54,7 @@ class NonSufficientFundsSchema(BaseSchema):  # pylint: disable=too-many-ancestor
 
     class Meta(BaseSchema.Meta):  # pylint: disable=too-few-public-methods
         """Returns all the fields from the SQLAlchemy class."""
+
         model = NonSufficientFundsModel
 
     description = fields.String(data_key='description')
diff --git a/pay-api/src/pay_api/services/non_sufficient_funds.py b/pay-api/src/pay_api/services/non_sufficient_funds.py
index 7e21c1bc8..d7d1d46f0 100644
--- a/pay-api/src/pay_api/services/non_sufficient_funds.py
+++ b/pay-api/src/pay_api/services/non_sufficient_funds.py
@@ -18,14 +18,14 @@
 
 from flask import current_app
 
-from pay_api.models import NonSufficientFundsModel
-from pay_api.models import NonSufficientFundsSchema
 from pay_api.models import InvoiceSchema
+from pay_api.models import InvoiceReference as InvoiceReferenceModel
 from pay_api.models import Invoice as InvoiceModel
+from pay_api.models import NonSufficientFundsModel
+from pay_api.models import NonSufficientFundsSchema
 from pay_api.models import Payment as PaymentModel
 from pay_api.models import PaymentSchema
 from pay_api.models import PaymentAccount as PaymentAccountModel
-from pay_api.models import InvoiceReference as InvoiceReferenceModel
 from pay_api.models import db
 
 
@@ -136,7 +136,7 @@ def find_all_non_sufficient_funds_invoices(account_id: str, page: int, limit: in
         # pylint: disable=too-many-locals
         """Return all Non-Sufficient Funds."""
         results, total = NonSufficientFundsService.query_all_non_sufficient_funds_invoices(account_id=account_id,
-                                                                                     page=page, limit=limit)
+                                                                                           page=page, limit=limit)
 
         data = {
             'total': total,
diff --git a/pay-api/tests/unit/api/test_non_sufficient_funds.py b/pay-api/tests/unit/api/test_non_sufficient_funds.py
index a6f9adfff..08b944e0a 100644
--- a/pay-api/tests/unit/api/test_non_sufficient_funds.py
+++ b/pay-api/tests/unit/api/test_non_sufficient_funds.py
@@ -18,11 +18,10 @@
 """
 from pay_api.models import FeeSchedule
 from pay_api.models import PaymentAccount
+from pay_api.utils.enums import InvoiceStatus
 from tests.utilities.base_test import (
     factory_invoice_reference, factory_invoice, factory_non_sufficient_funds, factory_payment,
     factory_payment_account, factory_payment_line_item, get_claims, token_header)
-from pay_api.utils.enums import (
-    InvoiceStatus)
 
 
 def test_get_non_sufficient_funds(session, client, jwt, app):
diff --git a/pay-api/tests/unit/models/test_non_sufficient_funds.py b/pay-api/tests/unit/models/test_non_sufficient_funds.py
index 7a7c2261b..1e71adcb9 100644
--- a/pay-api/tests/unit/models/test_non_sufficient_funds.py
+++ b/pay-api/tests/unit/models/test_non_sufficient_funds.py
@@ -29,4 +29,5 @@ def test_non_sufficient_funds(session):
 
     assert non_sufficient_funds.id is not None
     assert non_sufficient_funds.invoice_id is not None
-    assert non_sufficient_funds.description is not None
\ No newline at end of file
+    assert non_sufficient_funds.description is not None
+    
\ No newline at end of file
diff --git a/pay-api/tests/unit/services/test_non_sufficient_funds.py b/pay-api/tests/unit/services/test_non_sufficient_funds.py
index 14a32cd4e..4bd3852db 100644
--- a/pay-api/tests/unit/services/test_non_sufficient_funds.py
+++ b/pay-api/tests/unit/services/test_non_sufficient_funds.py
@@ -19,11 +19,10 @@
 
 from pay_api.models import FeeSchedule
 from pay_api.services import NonSufficientFundsService
+from pay_api.utils.enums import InvoiceStatus
 from tests.utilities.base_test import (
     factory_invoice_reference, factory_invoice, factory_non_sufficient_funds, factory_payment,
     factory_payment_account, factory_payment_line_item)
-from pay_api.utils.enums import (
-    InvoiceStatus)
 
 
 def test_save_non_sufficient_funds(session):
@@ -33,11 +32,12 @@ def test_save_non_sufficient_funds(session):
         'description': 'NSF',
     }
     non_sufficient_funds = NonSufficientFundsService.save_non_sufficient_funds(invoice_id=1,
-                                                                                    description='NSF')
+                                                                               description='NSF')
     assert non_sufficient_funds
     assert non_sufficient_funds.invoice_id == non_sufficient_funds_object.get('invoice_id')
     assert non_sufficient_funds.description == non_sufficient_funds_object.get('description')
 
+
 def test_find_all_non_sufficient_funds_invoices(session):
     """Test find_all_non_sufficient_funds_invoices."""
     invoice_number = '10001'
diff --git a/pay-api/tests/utilities/base_test.py b/pay-api/tests/utilities/base_test.py
index e56611016..f258d9eed 100644
--- a/pay-api/tests/utilities/base_test.py
+++ b/pay-api/tests/utilities/base_test.py
@@ -25,7 +25,7 @@
 from faker import Faker
 
 from pay_api.models import (
-    CfsAccount, Comment, DistributionCode, EFTShortnames,  Invoice, InvoiceReference, NonSufficientFundsModel, Payment,
+    CfsAccount, Comment, DistributionCode, EFTShortnames, Invoice, InvoiceReference, NonSufficientFundsModel, Payment,
     PaymentAccount, PaymentLineItem, PaymentTransaction, Receipt, RoutingSlip, Statement, StatementInvoices,
     StatementSettings)
 from pay_api.utils.constants import DT_SHORT_FORMAT