diff --git a/app/Http/Controllers/ESign/EsignApiController.php b/app/Http/Controllers/ESign/EsignApiController.php
index 4f811856..b44ab260 100644
--- a/app/Http/Controllers/ESign/EsignApiController.php
+++ b/app/Http/Controllers/ESign/EsignApiController.php
@@ -13,7 +13,7 @@
 use App\Models\ESign\EsignSigner;
 use App\Models\ESign\EsignSignField;
 use App\Models\ESign\EsignAuditLog;
-use App\Models\Tenants\Tenant;
+use App\Models\Sales\TenantProspect;
 use App\Models\Tenants\TenantSetting;
 use App\Services\Barobill\BarobillService;
 use App\Services\GoogleCloudStorageService;
@@ -75,33 +75,33 @@ public function searchPartners(Request $request): JsonResponse
     }
 
     /**
-     * 고객(테넌트) 검색
+     * 고객(명함 등록 고객) 검색
      */
     public function searchTenants(Request $request): JsonResponse
     {
         $q = trim($request->input('q', ''));
 
-        $query = Tenant::whereNull('deleted_at');
+        $query = TenantProspect::query();
 
         if ($q !== '') {
             $query->where(function ($w) use ($q) {
                 $w->where('company_name', 'like', "%{$q}%")
-                  ->orWhere('business_num', 'like', "%{$q}%")
-                  ->orWhere('phone', 'like', "%{$q}%")
-                  ->orWhere('ceo_name', 'like', "%{$q}%");
+                  ->orWhere('business_number', 'like', "%{$q}%")
+                  ->orWhere('ceo_name', 'like', "%{$q}%")
+                  ->orWhere('contact_phone', 'like', "%{$q}%");
             });
         }
 
-        $tenants = $query->orderBy('company_name')->limit(20)->get();
+        $prospects = $query->orderBy('company_name')->limit(20)->get();
 
-        $data = $tenants->map(fn($t) => [
-            'id' => $t->id,
-            'company_name' => $t->company_name,
-            'business_num' => $t->business_num,
-            'ceo_name' => $t->ceo_name,
-            'address' => $t->address,
-            'phone' => $t->phone,
-            'email' => $t->email,
+        $data = $prospects->map(fn($p) => [
+            'id' => $p->id,
+            'company_name' => $p->company_name,
+            'business_number' => $p->business_number,
+            'ceo_name' => $p->ceo_name,
+            'address' => $p->address,
+            'phone' => $p->contact_phone,
+            'email' => $p->contact_email,
         ]);
 
         return response()->json(['success' => true, 'data' => $data]);
diff --git a/resources/views/esign/create.blade.php b/resources/views/esign/create.blade.php
index 06ae5625..37ce7bfb 100644
--- a/resources/views/esign/create.blade.php
+++ b/resources/views/esign/create.blade.php
@@ -421,7 +421,7 @@ className={`w-full text-left px-3 py-2.5 rounded-lg mb-1 transition-colors ${i =
                                 {t.ceo_name && <span className="text-xs text-gray-500 bg-gray-100 px-1.5 py-0.5 rounded">대표: {t.ceo_name}</span>}
                             </div>
                             <div className="flex items-center gap-3 mt-0.5">
-                                {t.business_num && <span className="text-xs text-gray-400">{t.business_num}</span>}
+                                {t.business_number && <span className="text-xs text-gray-400">{t.business_number}</span>}
                                 {t.phone && <span className="text-xs text-gray-400">{t.phone}</span>}
                                 {t.address && <span className="text-xs text-gray-400 truncate" style={{ maxWidth: 200 }}>{t.address}</span>}
                             </div>
@@ -540,18 +540,18 @@ className={`w-full text-left px-3 py-2.5 rounded-lg mb-1 transition-colors ${i =
         }
     };
 
-    // 고객(테넌트) 선택 핸들러
+    // 고객(명함 등록 고객) 선택 핸들러
     const handleTenantSelect = (tenant) => {
         const keyMap = {
             company_name: tenant.company_name,
-            biz_no: tenant.business_num,
+            biz_no: tenant.business_number,
             address: tenant.address,
             phone: tenant.phone,
         };
         const labelMap = {
             '상호': tenant.company_name,
-            '사업자등록증': tenant.business_num,
-            '사업자등록번호': tenant.business_num,
+            '사업자등록증': tenant.business_number,
+            '사업자등록번호': tenant.business_number,
             '주소': tenant.address,
             '전화': tenant.phone,
             '전화번호': tenant.phone,