diff --git a/service-api/app/src/App/src/DataAccess/Repository/Response/Lpa.php b/service-api/app/src/App/src/DataAccess/Repository/Response/Lpa.php
index fdaa37ca95..a5f97675bc 100644
--- a/service-api/app/src/App/src/DataAccess/Repository/Response/Lpa.php
+++ b/service-api/app/src/App/src/DataAccess/Repository/Response/Lpa.php
@@ -4,22 +4,24 @@
 
 namespace App\DataAccess\Repository\Response;
 
+use App\Entity\Lpa as CombinedFormatLpa;
 use App\Service\Lpa\SiriusLpa;
 use DateTimeInterface;
 
 final class Lpa implements LpaInterface
 {
     /**
-     * @param array|SiriusLpa|null   $data       Array or object representing the LPA's data.
-     * @param DateTimeInterface|null $lookupTime The datetime that the data was looked up in Sirius main database.
+     * @param array|SiriusLpa|CombinedFormatLpa|null $data Array or object representing the LPA's data.
+     * @param DateTimeInterface|null $lookupTime The datetime that the data was looked up in
+     *                                           Sirius main database.
      */
     public function __construct(
-        private array|SiriusLpa|null $data,
+        private array|SiriusLpa|CombinedFormatLpa|null $data,
         private ?DateTimeInterface $lookupTime,
     ) {
     }
 
-    public function getData(): array|SiriusLpa|null
+    public function getData(): array|SiriusLpa|CombinedFormatLpa|null
     {
         return $this->data;
     }
diff --git a/service-api/app/src/App/src/DataAccess/Repository/Response/LpaInterface.php b/service-api/app/src/App/src/DataAccess/Repository/Response/LpaInterface.php
index 4c4ceeddce..f50679aa53 100644
--- a/service-api/app/src/App/src/DataAccess/Repository/Response/LpaInterface.php
+++ b/service-api/app/src/App/src/DataAccess/Repository/Response/LpaInterface.php
@@ -4,6 +4,7 @@
 
 namespace App\DataAccess\Repository\Response;
 
+use App\Entity\Lpa as CombinedFormatLpa;
 use App\Service\Lpa\SiriusLpa;
 use DateTimeInterface;
 
@@ -12,7 +13,7 @@ interface LpaInterface
     /**
      * Returns the data the makes up the LPA.
      */
-    public function getData(): array|SiriusLpa|null;
+    public function getData(): array|SiriusLpa|CombinedFormatLpa|null;
 
     /**
      * Returns the Date & Time that the data was looked up in Sirius main database.
diff --git a/service-api/app/src/App/src/Service/Lpa/CombinedLpaManager.php b/service-api/app/src/App/src/Service/Lpa/CombinedLpaManager.php
index 9d0cf28d52..7428ad137d 100644
--- a/service-api/app/src/App/src/Service/Lpa/CombinedLpaManager.php
+++ b/service-api/app/src/App/src/Service/Lpa/CombinedLpaManager.php
@@ -8,6 +8,7 @@
 use App\DataAccess\ApiGateway\SiriusLpas;
 use App\DataAccess\Repository\Response\LpaInterface;
 use App\DataAccess\Repository\UserLpaActorMapInterface;
+use App\Exception\ApiException;
 use App\Service\Lpa\Combined\ResolveLpaTypes;
 
 /**
@@ -20,21 +21,22 @@ public function __construct(
         private readonly ResolveLpaTypes $resolveLpaTypes,
         private readonly SiriusLpas $siriusLpas,
         private readonly DataStoreLpas $dataStoreLpas,
-        private readonly SiriusLpaManager $siriusLpaManager,
+        private ResolveActor $resolveActor,
+        private IsValidLpa $isValidLpa,
     ) {
     }
 
     public function getByUid(string $uid): ?LpaInterface
     {
-        return $this->siriusLpaManager->getByUid($uid);
+        throw new ApiException('Not implemented');
     }
 
     public function getByUserLpaActorToken(string $token, string $userId): ?array
     {
-        return $this->siriusLpaManager->getByUserLpaActorToken($token, $userId);
+        throw new ApiException('Not implemented');
     }
 
-    public function getAllForUser(string $userId): array
+    public function getAllActiveForUser(string $userId): array
     {
         // Returns an array of all the LPAs Ids (plus other metadata) in the user's account.
         $lpaActorMaps = $this->userLpaActorMapRepository->getByUserId($userId);
@@ -46,7 +48,7 @@ public function getAllForUser(string $userId): array
         return $this->lookupAndFormatLpas($lpaActorMaps);
     }
 
-    public function getAllLpasAndRequestsForUser(string $userId): array
+    public function getAllForUser(string $userId): array
     {
         // Returns an array of all the LPAs Ids (plus other metadata) in the user's account.
         $lpaActorMaps = $this->userLpaActorMapRepository->getByUserId($userId);
@@ -56,7 +58,7 @@ public function getAllLpasAndRequestsForUser(string $userId): array
 
     public function getByViewerCode(string $viewerCode, string $donorSurname, ?string $organisation = null): ?array
     {
-        return $this->siriusLpaManager->getByViewerCode($viewerCode, $donorSurname, $organisation);
+        throw new ApiException('Not implemented');
     }
 
     /**
@@ -80,11 +82,11 @@ private function lookupAndFormatLpas(array $lpaActorMaps): array
 
         $keyedDataStoreLpas = [];
         array_walk($dataStoreLpas, function (LpaInterface $item) use (&$keyedDataStoreLpas) {
-            $keyedDataStoreLpas[$item->getData()['uid']] = $item;
+            $keyedDataStoreLpas[$item->getData()->uId] = $item;
         });
 
         // unusual combination operation in order to preserve potential numeric keys
-        $lpas = $siriusLpas + $dataStoreLpas;
+        $lpas = $keyedDataStoreLpas + $siriusLpas;
 
         $result = [];
 
@@ -103,9 +105,7 @@ private function lookupAndFormatLpas(array $lpaActorMaps): array
 
             $lpaData = $lpa->getData();
 
-            // TODO load lpaData into object hydrator
-            // TODO combined resolveActor that uses object
-            $actor = ($this->resolveActor)($lpaData, (int) $item['ActorId']);
+            $actor = ($this->resolveActor)($lpaData, (string) $item['ActorId']);
 
             //Extract and return only LPA's where status is Registered or Cancelled
             if (($this->isValidLpa)($lpaData)) {
diff --git a/service-api/app/src/App/src/Service/Lpa/ResolveActor/LpaStoreHasActorTrait.php b/service-api/app/src/App/src/Service/Lpa/ResolveActor/LpaStoreHasActorTrait.php
new file mode 100644
index 0000000000..8948189911
--- /dev/null
+++ b/service-api/app/src/App/src/Service/Lpa/ResolveActor/LpaStoreHasActorTrait.php
@@ -0,0 +1,73 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\Lpa\ResolveActor;
+
+use App\Entity\LpaStore\LpaStoreAttorney;
+use App\Entity\LpaStore\LpaStoreDonor;
+use App\Entity\LpaStore\LpaStoreTrustCorporations;
+
+/**
+ * @psalm-require-implements HasActorInterface
+ */
+trait LpaStoreHasActorTrait
+{
+    /** @var LpaStoreAttorney[] */
+    public readonly ?array $attorneys;
+
+    /** @psalm-var ?LpaStoreDonor  */
+    public readonly ?object $donor;
+
+    /** @var LpaStoreTrustCorporations[] */
+    public readonly ?array $trustCorporations;
+
+    public function hasActor(string $uid): ?LpaActor
+    {
+        // Determine if the actor is a primary attorney
+        $actor = $this->isAPrimaryAttorney($uid);
+
+        // If not an attorney or tc, check if they're the donor.
+        if ($actor === null) {
+            $actor = $this->isADonor($uid);
+        }
+
+        // Is the actor a trust corporation
+        if ($actor === null) {
+            $actor = $this->isATrustCorporation($uid);
+        }
+
+        return $actor;
+    }
+
+    private function isAPrimaryAttorney(string $uid): ?LpaActor
+    {
+        foreach ($this->attorneys as $attorney) {
+            if ((string) $attorney->uId === $uid) {
+                return new LpaActor($attorney, ActorType::ATTORNEY);
+            }
+        }
+
+        return null;
+    }
+
+    private function isADonor(string $uid): ?LpaActor
+    {
+        if ($this->donor->uId === $uid) {
+            return new LpaActor($this->donor, ActorType::DONOR);
+        }
+
+        return null;
+    }
+
+    private function isATrustCorporation(string $uid): ?LpaActor
+    {
+        foreach ($this->trustCorporations as $tc) {
+            if ($tc->uId === $uid) {
+                return new LpaActor($tc, ActorType::TRUST_CORPORATION);
+            }
+        }
+
+        return null;
+    }
+}