Mom has a reverse mortgage home. Her son is mentally ill and has put her into $70K debt, neglects her and has mentally & emotionally abused her. Doctor has record of mom's mental & emotional state after he worked her over Aug 2018. He's turned her away from daughter who was caring for her at her home and talked her into get an apartment with him. He's NOT healthy to be around 24/7 especially in her declining mental capcity and memory loss. She says she's okay. She's been programmed to say what he wants. How can I get this stopped?
Is your plan still to return your mother to her own home, with the reverse mortgage on it, with - what? - support and care?
I think you might get further in discussions with APS and the police, and other agencies too perhaps, if you see your mother and your brother as a package and try to stop blaming him in your head. E.g "he put her into debt" "she has been programmed" "he's turned her away from daughter". Your brother is mentally ill. Stop attributing his misdeeds to intentional strategies.
Your mother loves her son. That is bad news for her, I agree - she would be richer and safer if she allowed other, better qualified people to take over his care - but until you align your plans with his welfare as well as hers she will undermine and oppose everything you do.