diff --git a/memory-bank/change-log.md b/memory-bank/change-log.md
index 77cc6362..50b7b973 100644
--- a/memory-bank/change-log.md
+++ b/memory-bank/change-log.md
@@ -1071,3 +1071,39 @@ Validation:
 Follow-ups:
 
 - Continue P2-S2 with remaining legacy relay GET candidates (`createwatchedcases_api`, `deletewatchedcasesproxy_api`, `getadvancedsearch_api`, `getbasicsearch_by_address_api`, `getbasicsearch_by_lparref_api`, `getdnscoords_api`).
+
+---
+
+### CL-029: TASK22229 P2-S2 Batch 12 (remaining relay GET candidates)
+
+date: 2026-03-24
+author: Cline
+scope: `pages/api/middleware/relayForwarding.js`, `pages/api/endpoint/{createwatchedcases_api,deletewatchedcasesproxy_api,getadvancedsearch_api,getbasicsearch_by_address_api,getbasicsearch_by_lparref_api,getdnscoords_api}.js`, `tests/phase21/endpoint-handler-contract.test.cjs`
+type: change
+rationale: Complete Batch 12 by migrating the remaining listed legacy relay GET candidates to shared forwarding helpers while preserving endpoint-specific validation, transforms, and error contracts.
+impact: Consolidated relay GET behavior and reduced endpoint-level relay boilerplate; no intended API contract changes.
+status: completed
+
+Summary:
+
+- Extended relay middleware with reusable helpers:
+    - `relayGetData` now supports token reuse via `transformData` path
+    - Added `forwardGetData` to support custom base URLs (used by proxy-to-local endpoint) while preserving hash behavior
+- Migrated remaining Batch 12 candidates:
+    - `getadvancedsearch_api.js` -> `relayGet` + `relayGetData` for project-type enrichment loop
+    - `getdnscoords_api.js` -> `relayGetData` for both DNS + SIPS source pulls
+    - `getbasicsearch_by_lparref_api.js` -> `relayGetData`
+    - `getbasicsearch_by_address_api.js` -> `relayGetData` for appeal-type and incident fetches
+    - `deletewatchedcasesproxy_api.js` -> `forwardGetData` with `BASE_URL`
+    - `createwatchedcases_api.js` -> `relayGetData` for record-exists pre-check (POST/PATCH upsert flow preserved)
+- Preserved endpoint-specific guard and error contracts (including status codes such as 500 for `BASIC_SEARCH_BY_ADDRESS_FETCH_FAILED`).
+- Updated phase21 endpoint contract tests for migrated handlers to mock `relayGetData` / `forwardGetData` where appropriate.
+
+Validation:
+
+- `node tests/phase21/endpoint-handler-contract.test.cjs` -> pass (152/152)
+- `npm run lint` -> warnings only (pre-existing `react-hooks/exhaustive-deps`; no new lint errors)
+
+Follow-ups:
+
+- Batch 12 completes the previously listed remaining P2-S2 relay GET candidates.
diff --git a/pages/api/endpoint/createwatchedcases_api.js b/pages/api/endpoint/createwatchedcases_api.js
index da199830..0c67b6a2 100644
--- a/pages/api/endpoint/createwatchedcases_api.js
+++ b/pages/api/endpoint/createwatchedcases_api.js
@@ -15,26 +15,30 @@ import { consoleLogger } from "../../../actions/core/logger";
 import { getToken } from "../../../actions/core/token";
 import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
+import { relayGetData } from "../middleware/relayForwarding";
 
 const WEBAPI_URL =
     process.env.RELAY_ROOT ||
     "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
 
-const recordExists = async (incidentId, contactId, token) => {
+const recordExists = async (incidentId, contactId, accessToken) => {
     const filter = `$filter=pinswg_WatchedCase/incidentid eq ${incidentId} and pinswg_Contact/contactid eq ${contactId}`;
     const queryUrl = `pinswg_watchlists?${filter}`;
-    const url = WEBAPI_URL + queryUrl + hashAPIPath(queryUrl);
 
     try {
-        const res = await axios.get(url, {
-            headers: {
-                Authorization: "Bearer " + token.access_token,
-                Accept: "application/json"
-            }
+        const response = await relayGetData({
+            queryUrl,
+            accessToken,
+            requestOptionsBuilder: (token) => ({
+                headers: {
+                    Authorization: "Bearer " + token,
+                    Accept: "application/json"
+                }
+            })
         });
 
-        if (res.data.value && res.data.value.length > 0) {
-            return res.data.value[0]; // return the existing record
+        if (response.data.value && response.data.value.length > 0) {
+            return response.data.value[0]; // return the existing record
         }
 
         return null;
@@ -79,7 +83,11 @@ export default async function ApiProxy(req, res) {
         const incidentId = watchedCaseMatch[1];
         const contactId = contactMatch[1];
 
-        const existingRecord = await recordExists(incidentId, contactId, token);
+        const existingRecord = await recordExists(
+            incidentId,
+            contactId,
+            token.access_token
+        );
 
         let method, queryUrl;
 
diff --git a/pages/api/endpoint/deletewatchedcasesproxy_api.js b/pages/api/endpoint/deletewatchedcasesproxy_api.js
index 4aa4466a..0a1b8246 100644
--- a/pages/api/endpoint/deletewatchedcasesproxy_api.js
+++ b/pages/api/endpoint/deletewatchedcasesproxy_api.js
@@ -17,16 +17,10 @@
  *         description: Success
  */
 
-import axios from "axios";
 import { azureHeaders } from "../../../actions/core/headers";
 import { consoleLogger } from "../../../actions/core/logger";
-import { getToken } from "../../../actions/core/token";
-import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
-
-const WEBAPI_URL =
-    process.env.RELAY_ROOT ||
-    "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
+import { forwardGetData } from "../middleware/relayForwarding";
 
 const BASE_URL = process.env.API_ROOT || "http://localhost:3000";
 
@@ -45,15 +39,15 @@ export default async function ApiProxy(req, res) {
     }
 
     try {
-        const token = await getToken();
         const queryUrl =
             "/api/endpoint/deletewatchedcases_api?watchedCaseID=" +
             watchedCaseID;
 
-        const { data } = await axios.get(
-            BASE_URL + queryUrl + hashAPIPath(queryUrl),
-            azureHeaders(token.access_token)
-        );
+        const { data } = await forwardGetData({
+            baseUrl: BASE_URL,
+            queryUrl,
+            requestOptionsBuilder: (accessToken) => azureHeaders(accessToken)
+        });
 
         return respondSuccess(res, data);
     } catch (error) {
diff --git a/pages/api/endpoint/getadvancedsearch_api.js b/pages/api/endpoint/getadvancedsearch_api.js
index 2f504689..e90592b5 100644
--- a/pages/api/endpoint/getadvancedsearch_api.js
+++ b/pages/api/endpoint/getadvancedsearch_api.js
@@ -21,16 +21,10 @@
  *         description: Success
  */
 
-import axios from "axios";
 import { azureHeadersPaged } from "../../../actions/core/headers";
 import { consoleLogger } from "../../../actions/core/logger";
-import { getToken } from "../../../actions/core/token";
-import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
-
-const WEBAPI_URL =
-    process.env.RELAY_ROOT ||
-    "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
+import { relayGet, relayGetData } from "../middleware/relayForwarding";
 
 export default async function ApiProxy(req, res) {
     const encodedSearchString = req.query.searchstring;
@@ -109,62 +103,63 @@ export default async function ApiProxy(req, res) {
         queryString +
         " pinswg_appealcasetype ne null and pinswg_publishtoweb eq true&$orderby=createdon desc&$count=true";
 
-    try {
-        const token = await getToken();
-        const { data } = await axios.get(
-            WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-            azureHeadersPaged(token.access_token)
-        );
-
-        if (Object.prototype.hasOwnProperty.call(data, "@odata.nextLink")) {
-            const dataStr = JSON.stringify(data["@odata.nextLink"]);
-            data["@odata.nextLink"] = dataStr.split("/v8.2/")[1];
-        }
-
-        if (searchString.projecttype != null) {
-            for (let i = 0; i < data.value.length; i++) {
-                const item = data.value[i];
-
-                try {
-                    const projectTypeQuery =
-                        "pinswg_sipses?$filter=_pinswg_sipscase_value eq " +
-                        item.incidentid +
-                        " and _pinswg_projecttype_value eq " +
-                        searchString.projecttype +
-                        "&$select=_pinswg_projecttype_value";
-
-                    const response = await axios.get(
-                        WEBAPI_URL +
-                            projectTypeQuery +
-                            hashAPIPath(projectTypeQuery),
-                        azureHeadersPaged(token.access_token)
-                    );
-
-                    if (
-                        response.data.value.length > 0 &&
-                        response.data.value[0]._pinswg_projecttype_value != null
-                    ) {
-                        Object.assign(item, response.data.value[0]);
-                    }
-                } catch (error) {
-                    consoleLogger(error);
-                }
+    return relayGet({
+        queryUrl,
+        res,
+        requestOptionsBuilder: (accessToken) => azureHeadersPaged(accessToken),
+        transformData: async (data, accessToken) => {
+            if (Object.prototype.hasOwnProperty.call(data, "@odata.nextLink")) {
+                const dataStr = JSON.stringify(data["@odata.nextLink"]);
+                data["@odata.nextLink"] = dataStr.split("/v8.2/")[1];
             }
 
-            data.value = data.value.filter(
-                (item) => item._pinswg_projecttype_value != null
-            );
+            if (searchString.projecttype != null) {
+                for (let i = 0; i < data.value.length; i++) {
+                    const item = data.value[i];
 
-            data["@odata.count"] = data.value.length;
-        }
+                    try {
+                        const projectTypeQuery =
+                            "pinswg_sipses?$filter=_pinswg_sipscase_value eq " +
+                            item.incidentid +
+                            " and _pinswg_projecttype_value eq " +
+                            searchString.projecttype +
+                            "&$select=_pinswg_projecttype_value";
 
-        return respondSuccess(res, data);
-    } catch (error) {
-        consoleLogger(error);
-        return respondError(res, {
+                        const projectTypeResponse = await relayGetData({
+                            queryUrl: projectTypeQuery,
+                            accessToken,
+                            requestOptionsBuilder: (token) =>
+                                azureHeadersPaged(token)
+                        });
+
+                        if (
+                            projectTypeResponse.data.value.length > 0 &&
+                            projectTypeResponse.data.value[0]
+                                ._pinswg_projecttype_value != null
+                        ) {
+                            Object.assign(
+                                item,
+                                projectTypeResponse.data.value[0]
+                            );
+                        }
+                    } catch (error) {
+                        consoleLogger(error);
+                    }
+                }
+
+                data.value = data.value.filter(
+                    (item) => item._pinswg_projecttype_value != null
+                );
+
+                data["@odata.count"] = data.value.length;
+            }
+
+            return data;
+        },
+        errorResponse: {
             status: 400,
             code: "ADVANCED_SEARCH_FETCH_FAILED",
             message: "Failed to fetch advanced search results"
-        });
-    }
+        }
+    });
 }
diff --git a/pages/api/endpoint/getbasicsearch_by_address_api.js b/pages/api/endpoint/getbasicsearch_by_address_api.js
index 02ab6644..477fdbed 100644
--- a/pages/api/endpoint/getbasicsearch_by_address_api.js
+++ b/pages/api/endpoint/getbasicsearch_by_address_api.js
@@ -1,14 +1,8 @@
-import axios from "axios";
 import { JSONPath as jsonpath } from "jsonpath-plus";
-import { azureHeaders } from "../../../actions/core/headers";
 import { consoleLogger } from "../../../actions/core/logger";
 import { getToken } from "../../../actions/core/token";
-import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
-
-const WEBAPI_URL =
-    process.env.RELAY_ROOT ||
-    "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
+import { relayGetData } from "../middleware/relayForwarding";
 
 const escapeODataString = (value = "") =>
     String(value).replace(/'/g, "''").trim();
@@ -366,15 +360,15 @@ const fetchSearchResultsForAppealType = async (item, token, params) => {
         "\n\n",
         item.LogicalCollectionName,
         "\n\n",
-        WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
+        queryUrl,
         "\n==========================================\n"
     );
 
     try {
-        const { data } = await axios.get(
-            WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-            azureHeaders(token.access_token)
-        );
+        const { data } = await relayGetData({
+            queryUrl,
+            accessToken: token.access_token
+        });
 
         return (data.value || []).map((record) => ({
             ...record,
@@ -391,10 +385,10 @@ const fetchIncident = async (incidentId, token) => {
     const queryUrl = buildIncidentQueryUrl(incidentId);
 
     try {
-        const { data } = await axios.get(
-            WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-            azureHeaders(token.access_token)
-        );
+        const { data } = await relayGetData({
+            queryUrl,
+            accessToken: token.access_token
+        });
 
         return data?.value?.[0] || null;
     } catch (error) {
diff --git a/pages/api/endpoint/getbasicsearch_by_lparref_api.js b/pages/api/endpoint/getbasicsearch_by_lparref_api.js
index 228bf990..ada7ae26 100644
--- a/pages/api/endpoint/getbasicsearch_by_lparref_api.js
+++ b/pages/api/endpoint/getbasicsearch_by_lparref_api.js
@@ -1,13 +1,6 @@
-import axios from "axios";
-import { azureHeaders } from "../../../actions/core/headers";
 import { consoleLogger } from "../../../actions/core/logger";
-import { getToken } from "../../../actions/core/token";
-import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
-
-const WEBAPI_URL =
-    process.env.RELAY_ROOT ||
-    "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
+import { relayGetData } from "../middleware/relayForwarding";
 
 // ✅ IMPORTANT: Only include the 23 types that actually contain pinswg_lpaapplicationreference
 // You can copy from your existing appealTypeArray but only keep those entities.
@@ -281,7 +274,6 @@ var appealTypeArrayWithLpaRef = [
 
 export default async function ApiProxy(req, res) {
     try {
-        const token = await getToken();
         let lpaRef = (req.query.lpaRef || "").trim();
 
         if (!lpaRef) {
@@ -321,10 +313,7 @@ export default async function ApiProxy(req, res) {
                     `&$count=true` +
                     `&$orderby=modifiedon desc`;
 
-                const { data } = await axios.get(
-                    WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-                    azureHeaders(token.access_token)
-                );
+                const { data } = await relayGetData({ queryUrl });
 
                 // Normalize response rows
                 const normalized = (data?.value || []).map((r) => ({
diff --git a/pages/api/endpoint/getdnscoords_api.js b/pages/api/endpoint/getdnscoords_api.js
index 4ecbdc19..1d253873 100644
--- a/pages/api/endpoint/getdnscoords_api.js
+++ b/pages/api/endpoint/getdnscoords_api.js
@@ -1,14 +1,7 @@
-import axios from "axios";
-import { azureHeaders } from "../../../actions/core/headers";
 import { consoleLogger } from "../../../actions/core/logger";
-import { getToken } from "../../../actions/core/token";
 import OSPoint from "ospoint";
-import { hashAPIPath } from "../../../actions/core/hash";
 import { respondError, respondSuccess } from "../middleware/apiResponse";
-
-const WEBAPI_URL =
-    process.env.RELAY_ROOT ||
-    "https://dev-pedw-ns.servicebus.windows.net/dev-pedw-hc/";
+import { relayGetData } from "../middleware/relayForwarding";
 
 const renameKeys = (obj) => {
     const keyMappings = {
@@ -75,8 +68,6 @@ const keysToRemove = [
 ];
 
 export default async function ApiProxy(req, res) {
-    const token = await getToken();
-
     const queryUrl =
         "pinswg_dnses?$select=pinswg_projectlocation,pinswg_mapzoomlevel,pinswg_name,pinswg_anticipatedgridreferenceeastingtext,pinswg_anticipatedgridreferencenorthingtext,pinswg_projectname,pinswg_dnsid,_pinswg_associatedlpa_value,_pinswg_appellant_value&$filter=pinswg_anticipatedgridreferencenorthingtext ne null and pinswg_anticipatedgridreferenceeastingtext ne null&$count=true";
 
@@ -87,11 +78,8 @@ export default async function ApiProxy(req, res) {
     const coordsObj = { value: [] };
 
     try {
-        // First Axios request
-        const dnsCoordsObj = await axios.get(
-            WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-            azureHeaders(token.access_token)
-        );
+        // First relay request
+        const dnsCoordsObj = await relayGetData({ queryUrl });
         // Merge the first response's 'value' array into the coordsObj's value array
         if (Array.isArray(dnsCoordsObj.data.value)) {
             coordsObj.value = coordsObj.value.concat(dnsCoordsObj.data.value); // Concatenate arrays
@@ -99,11 +87,8 @@ export default async function ApiProxy(req, res) {
             coordsObj.value.push(dnsCoordsObj.data.value); // Push single value if it's not an array
         }
 
-        // Second Axios request
-        const sipsCoordsObj = await axios.get(
-            WEBAPI_URL + queryUrlSips + hashAPIPath(queryUrlSips),
-            azureHeaders(token.access_token)
-        );
+        // Second relay request
+        const sipsCoordsObj = await relayGetData({ queryUrl: queryUrlSips });
         // Merge the second response's 'value' array into the coordsObj's value array
         if (Array.isArray(sipsCoordsObj.data.value)) {
             coordsObj.value = coordsObj.value.concat(sipsCoordsObj.data.value); // Concatenate arrays
diff --git a/pages/api/middleware/relayForwarding.js b/pages/api/middleware/relayForwarding.js
index 45f07dd8..f5b4c16c 100644
--- a/pages/api/middleware/relayForwarding.js
+++ b/pages/api/middleware/relayForwarding.js
@@ -17,20 +17,60 @@ export const relayGet = async ({
     requestOptionsBuilder
 }) => {
     try {
-        const token = await getToken();
-        const { data } = await axios.get(
-            WEBAPI_URL + queryUrl + hashAPIPath(queryUrl),
-            typeof requestOptionsBuilder === "function"
-                ? requestOptionsBuilder(token.access_token)
-                : azureHeaders(token.access_token)
-        );
+        const { data, accessToken } = await relayGetData({
+            queryUrl,
+            requestOptionsBuilder
+        });
 
         return respondSuccess(
             res,
-            typeof transformData === "function" ? transformData(data) : data
+            typeof transformData === "function"
+                ? await transformData(data, accessToken)
+                : data
         );
     } catch (error) {
         consoleLogger(error);
         return respondError(res, errorResponse);
     }
 };
+
+export const relayGetData = async ({
+    queryUrl,
+    requestOptionsBuilder,
+    accessToken
+}) => {
+    return forwardGetData({
+        queryUrl,
+        requestOptionsBuilder,
+        accessToken
+    });
+};
+
+export const forwardGetData = async ({
+    baseUrl,
+    queryUrl,
+    requestOptionsBuilder,
+    accessToken,
+    appendHash = true
+}) => {
+    const tokenAccessToken =
+        typeof accessToken === "string" && accessToken.length > 0
+            ? accessToken
+            : (await getToken()).access_token;
+
+    const resolvedBaseUrl = baseUrl || WEBAPI_URL;
+    const finalUrl =
+        resolvedBaseUrl + queryUrl + (appendHash ? hashAPIPath(queryUrl) : "");
+
+    const { data } = await axios.get(
+        finalUrl,
+        typeof requestOptionsBuilder === "function"
+            ? requestOptionsBuilder(tokenAccessToken)
+            : azureHeaders(tokenAccessToken)
+    );
+
+    return {
+        data,
+        accessToken: tokenAccessToken
+    };
+};
diff --git a/tests/phase21/endpoint-handler-contract.test.cjs b/tests/phase21/endpoint-handler-contract.test.cjs
index ae92776b..23dd939d 100644
--- a/tests/phase21/endpoint-handler-contract.test.cjs
+++ b/tests/phase21/endpoint-handler-contract.test.cjs
@@ -1069,14 +1069,13 @@ test("getadvancedsearch catch path returns ADVANCED_SEARCH_FETCH_FAILED", async
     const mod = loadModule("pages/api/endpoint/getadvancedsearch_api.js", {
         respondError: respondErrorMock,
         respondSuccess: respondSuccessMock,
-        getToken: async () => ({ access_token: "token" }),
-        hashAPIPath: () => "&hash=expected",
+        relayGet: async ({ res, errorResponse }) =>
+            respondErrorMock(res, errorResponse),
+        relayGetData: async () => ({
+            data: { value: [] },
+            accessToken: "token"
+        }),
         azureHeadersPaged: () => ({}),
-        axios: {
-            get: async () => {
-                throw new Error("relay failed");
-            }
-        },
         consoleLogger: () => {}
     });
 
@@ -2005,12 +2004,9 @@ test("getbasicsearch_by_lparref catch path returns BASIC_SEARCH_LPA_REF_FETCH_FA
         {
             respondError: respondErrorMock,
             respondSuccess: respondSuccessMock,
-            getToken: async () => {
-                throw new Error("token failed");
+            relayGetData: async () => {
+                throw new Error("relay failed");
             },
-            hashAPIPath: () => "&hash=expected",
-            azureHeaders: () => ({}),
-            axios: { get: async () => ({ data: { value: [] } }) },
             consoleLogger: () => {}
         }
     );
@@ -2033,11 +2029,7 @@ test("getbasicsearch_by_address success returns existing payload contract", asyn
             respondError: respondErrorMock,
             respondSuccess: respondSuccessMock,
             getToken: async () => ({ access_token: "token" }),
-            hashAPIPath: () => "&hash=expected",
-            azureHeaders: () => ({}),
-            axios: {
-                get: async () => ({ data: { value: [] } })
-            },
+            relayGetData: async () => ({ data: { value: [] } }),
             consoleLogger: () => {},
             jsonpath: () => []
         }
@@ -2063,10 +2055,8 @@ test("getbasicsearch_by_address catch path returns BASIC_SEARCH_BY_ADDRESS_FETCH
             getToken: async () => {
                 throw new Error("token failed");
             },
-            hashAPIPath: () => "&hash=expected",
-            azureHeaders: () => ({}),
-            axios: {
-                get: async () => ({ data: { value: [] } })
+            relayGetData: async () => {
+                throw new Error("relay failed");
             },
             consoleLogger: () => {},
             jsonpath: () => []
@@ -2744,14 +2734,10 @@ test("deletewatchedcasesproxy catch path returns WATCHED_CASE_PROXY_DELETE_FAILE
         {
             respondError: respondErrorMock,
             respondSuccess: respondSuccessMock,
-            getToken: async () => ({ access_token: "token" }),
-            hashAPIPath: () => "&hash=expected",
-            azureHeaders: () => ({}),
-            axios: {
-                get: async () => {
-                    throw new Error("proxy delete failed");
-                }
+            forwardGetData: async () => {
+                throw new Error("proxy delete failed");
             },
+            azureHeaders: () => ({}),
             consoleLogger: () => {},
             process: { env: {} }
         }
@@ -3412,13 +3398,8 @@ test("getdnscoords catch path returns DNS_COORDS_FETCH_FAILED", async () => {
     const mod = loadModule("pages/api/endpoint/getdnscoords_api.js", {
         respondError: respondErrorMock,
         respondSuccess: respondSuccessMock,
-        getToken: async () => ({ access_token: "token" }),
-        hashAPIPath: () => "&hash=expected",
-        azureHeaders: () => ({}),
-        axios: {
-            get: async () => {
-                throw new Error("relay failed");
-            }
+        relayGetData: async () => {
+            throw new Error("relay failed");
         },
         consoleLogger: () => {},
         OSPoint: function () {}