beginTransaction(); try { $pdo->prepare('DELETE FROM home_owners WHERE owner_id = ?')->execute([$ownerId]); $pdo->prepare('DELETE FROM property_owners WHERE owner_id = ? AND user_id = ?')->execute([$ownerId, $user['id']]); $pdo->commit(); } catch (Throwable $e) { $pdo->rollBack(); json_error(500, 'Delete failed'); } json_ok();