I am worried about my mother in law with alzheimer's. I am afraid for her life with her husband. Five months ago my husband her son passed away. I have a POA for her and she still living with me. Her husband (my husband's step dad) is not living with us, but he keeps insisting that she is his wife and its driving us crazy calling to send me the police. Before they were together but she got very ill in a coma due to being neglected by him. He was always out with the provider everywhere and she was left alone dirty with vomit and feces. Adult protective services was called and it was an investigation. Thats how we found out what was going on. We went to talk to him and practically he threw us out of his house and the APS told us she needs us and advised us to take her home after rehabilitation that's how we went to talk to a social worker. The social worker advised us to get a power attorney in both of our names. Do not know what to do, now that my husband died 5 months ago and her husband is not living with us but he is still insisting to get the authorities involved. What can I do to protect her from him since she has alzheimer's and he is a danger to my mother in law's well-being?