I have been taking care of mom for 4 yrs w/o problems until he moved in. 4 yrs ago my brother left to TX. I have lived with and taken care of mom. In 2013 she drew up a POA in my name. About a yr ago John(bro) had came back destitute, moved in, and is making life for me unbearable and upsetting mom. She is 89 and on hospice. He destroyed the POA and seems to have the nurse and social wrkr in his pocket. I work and so I am away during the day when they come. I have no idea what lies he told them. He relentlessly provokes me at home until I either lose it or have to leave. Mom has dementia and is heavily medicated and is starting to believe him. He tells her I don't care about her all the time. I think he overmedicates her to keep her confused and easier to manage. I am afraid of what he is up to and not sure I can stop it. Please someone, help me. You know, the last thing he said to me before he went to TX was that he was done with mom. He married in TX and she left him, he had no job, his car was repo'd, evicted from his apt. He only came back because he had no place else to go.