Restricting the application of certain provisions providing for the continuation of life estates or joint tenancy interests in real +property after the death of the recipient for medical assistance (MA) recovery +purposes to life estates and joint tenancy interest established after a certain +date; specifying certain general provisions governing the change in +effective date, providing for establishment and for the effectiveness of lien +notices; requiring and providing for the commissioner of human services and +county agencies to refund money attributable to life estates or joint +tenancy interests collected under a certain previous provision, liability +immunity provision (mk)