diff --git a/src/components/cases/convert-to-collections-dialog.tsx b/src/components/cases/convert-to-collections-dialog.tsx
index 4ddfdd8..d3df272 100644
--- a/src/components/cases/convert-to-collections-dialog.tsx
+++ b/src/components/cases/convert-to-collections-dialog.tsx
@@ -87,6 +87,11 @@ export function ConvertToCollectionsDialog({
   const [status, setStatus] = useState("none");
   const [includeEmpty, setIncludeEmpty] = useState(false);
   const [emptyName, setEmptyName] = useState("");
+  // When true (default), create ONE combined collection for the case using
+  // the first selected contact as the primary homeowner. When false, fall
+  // back to one collection per selected contact.
+  const [combine, setCombine] = useState(true);
+  const [primaryId, setPrimaryId] = useState<string | null>(null);
 
   useEffect(() => {
     if (!open) return;
@@ -95,6 +100,8 @@ export function ConvertToCollectionsDialog({
     setStatus("none");
     setIncludeEmpty(false);
     setEmptyName("");
+    setCombine(true);
+    setPrimaryId(null);
     (async () => {
       setLoading(true);
       const { data: ccs, error } = await supabase