Mom 83 has dementia, her short term memory is bad, but she still knows everyone and gets around good. My sister took her home from the hospital after UTI until she got her strength back. I live across the street from her and have been taking care of her. She was there for less than two weeks, my sister, changed her address, bank account, where she gets her medicine. There are 5 siblings but she did this with out talking to anyone. It was supposed to be temporary, now she is controling moms every move. We did take her out some at first, but now she makes excuses why she can't go. If we go to visit, my sister is just hateful. She screams at my mother if she wants to go. This started in April, and we have hard time seeing or talking to her. She does not want her to go back home, I have talked to a lot of people, but really haven't had any help. What should I do?