My fathers health is failing. My sister is POA. We had a difference of opinion on some of his personal property. She has allowed a friend to live in his new home for $400 a mo. I disagreed and the world blew up! We had not spoke much for 2 yrs. Only for minutes if something was happening with my father. She now has failed to call when he is hospitalized or doing poorly. I am 5 hrs away and my brother 19 hrs away. She has decided not to keep us updated. What can I do?