diff --git a/pyseed/seed_client.py b/pyseed/seed_client.py
index e16e8e8..d1d325e 100644
--- a/pyseed/seed_client.py
+++ b/pyseed/seed_client.py
@@ -1418,6 +1418,71 @@ def retrieve_at_building_and_update(self, audit_template_building_id: int, cycle
 
         return response
 
+    def retrieve_at_submission_and_update(self, audit_template_submission_id: int, cycle_id: int, seed_id: int, report_format: str = 'pdf', filename: str = None) -> dict:
+        """Connect to audit template and retrieve audit report by submission ID
+
+        Args:
+            audit_template_submission_id (int): ID of the AT submission report (different than building ID)
+            cycle_id (int): Cycle ID in SEED (needed for XML but not actually for PDF)
+            seed_id (int): PropertyView ID in SEED
+            file_format (str): pdf or xml report, defaults to pdf
+            filename (str): filename to use to upload to SEED
+
+        Returns:
+            dict: Response from the SEED API
+            including the PDF file (if that format was requested)
+        """
+
+        # api/v3/audit_template/pk/get_submission
+        # accepts pdf or xml
+        response = self.client.get(
+            None,
+            required_pk=False,
+            endpoint="audit_template_submission",
+            url_args={"PK": audit_template_submission_id},
+            report_format=report_format
+        )
+
+        if response['status'] == 'success':
+            if report_format.lower() == 'pdf':
+                pdf_file = response['content']
+                if not filename:
+                    filename = 'at_submission_report_' + str(audit_template_submission_id) + '.pdf'
+                files = [
+                    ('file', (filename, pdf_file)),
+                    ('file_type', (None, 1))
+                ]
+                response2 = self.client.put(
+                    None,
+                    required_pk=False,
+                    endpoint="properties_upload_inventory_document",
+                    url_args={"PK": seed_id},
+                    files=files
+                )
+                response2['pdf_report'] = pdf_file
+            else:
+                # assume XML
+                # now post to api/v3/properties/PK/update_with_buildingsync
+                xml_file = response['content']
+                if not filename:
+                    filename = 'at_' + str(int(time.time() * 1000)) + '.xml'
+
+                files = [
+                    ('file', (filename, xml_file)),
+                    ('file_type', (None, 1))
+                ]
+
+                response2 = self.client.put(
+                    None,
+                    required_pk=False,
+                    endpoint="properties_update_with_buildingsync",
+                    url_args={"PK": seed_id},
+                    files=files,
+                    cycle_id=cycle_id
+                )
+
+        return response2
+
     def retrieve_portfolio_manager_property(self, username: str, password: str, pm_property_id: int, save_file_name: Path) -> dict:
         """Connect to portfolio manager and download an individual properties data in Excel format
 
diff --git a/pyseed/seed_client_base.py b/pyseed/seed_client_base.py
index bffbbb0..f257dbc 100644
--- a/pyseed/seed_client_base.py
+++ b/pyseed/seed_client_base.py
@@ -68,12 +68,14 @@
         # PUTs with replaceable keys:
         'properties_update_with_buildingsync': 'api/v3/properties/PK/update_with_building_sync/',
         'property_update_with_espm': 'api/v3/properties/PK/update_with_espm/',
+        'properties_upload_inventory_document': 'api/v3/properties/PK/upload_inventory_document',
         # GETs with replaceable keys
         'import_files_matching_results': '/api/v3/import_files/PK/matching_and_geocoding_results/',
         'progress': '/api/v3/progress/PROGRESS_KEY/',
         'properties_meters': '/api/v3/properties/PK/meters/',
         'properties_meter_usage': '/api/v3/properties/PK/meter_usage/',
         'audit_template_building_xml': '/api/v3/audit_template/PK/get_building_xml',
+        'audit_template_submission': '/api/v3/audit_template/PK/get_submission',
         # GET & POST with replaceable keys
         'properties_meters_reading': '/api/v3/properties/PK/meters/METER_PK/readings/',
     }
@@ -216,6 +218,9 @@ def _check_response(self, response, *args, **kwargs):
         elif 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' in response_content_types:
             # spreadsheet response
             error = False
+        elif 'application/pdf' in response_content_types:
+            # PDF report response
+            error = False
         elif 'application/json' not in response_content_types:
             # get as text
             if not response.content:
@@ -477,6 +482,7 @@ def put(self, pk, endpoint=None, data_name=None, **kwargs):
         data_name = _set_default(self, 'data_name', data_name, required=False)
         url = add_pk(self.urls[endpoint], pk, required=kwargs.pop('required_pk', True), slash=True)
         url = _replace_url_args(url, url_args)
+
         response = super(UpdateMixin, self)._put(url=url, **kwargs)
         self._check_response(response, **kwargs)
         return self._get_result(response, data_name=data_name, **kwargs)