Reply To: CPT Title search returns no results

Okay, that should be still possible:

add_filter('asp_results', 'custom_asp_redirect_url', 10, 2);
function custom_asp_redirect_url($results, $search_id) {
	$apply_on_id = 1;
	
	if ( $apply_on_id == $search_id ) {
		foreach ( $results as $k => &$r ) {
			$r->link = get_site_url() . '/agent-portal/management/agent-profile-update/?agent_ID=' . $r->id;
		}
	}
	
	return $results;
}

Change the $apply_on_id variable to the search ID you want the code to apply on, and it should be fine.