Taken out of nursing home against her will. Any advice?

My mom was hospitalized from several small strokes and dementia. During hospital stay they declared her incompetant. She than was placed in a nursing home permanently by the Dr. Her husband - poa was mad she was in nursing home because no one could take care of him (he was disabled) as well as he did not want to pay. When the insurance ran out he wanted her put out of the nursing home. He had his daughter pick her up for a visit and refuse to take her back to the nursing home. After getting her home they had her sign a new will, they changed life insurance benifiuarys, had her sign to take iras out , took all out of a joint account. We called the county who did nothing. Her husband died is Nov. And than we have found out that he changed their house and put his adult children as joint tenents on her house in which she has lived for over 30 years. Advice please