diff --git a/api/rpk-api/firm/core/filter.py b/api/rpk-api/firm/core/filter.py
index 666d10f..7c48e15 100644
--- a/api/rpk-api/firm/core/filter.py
+++ b/api/rpk-api/firm/core/filter.py
@@ -155,4 +155,11 @@ class Filter(BaseFilterModel):
 
 class FilterSchema(Filter):
     label__ilike: Optional[str] = None
+    search: Optional[str] = None
     order_by: Optional[list[str]] = None
+    created_at__lte: Optional[str] = None
+    created_at__gte: Optional[str] = None
+    created_by__in: Optional[str] = None
+    updated_at__lte: Optional[str] = None
+    updated_at__gte: Optional[str] = None
+    updated_by__in: Optional[str] = None