His sister has moved with their mother and won't tell him the address. We are so frustrated. My husband's sister decided to move in with their elderly mother who has progressive dementia. At first we thought it was a good idea but now she has moved with their mom and won't tell my husband where they have moved to. We know she has convinced my mother in law to add the sister's name to her bank account and we believe that she is helping herself to the life savings the mom has spent her whole life accumulating. My husband was the POA but the sister convinced the mom to replace him with you know who. Isn't it tragic that we are talking about family members that commit this kind of treachery.