At my wit's end, could use some advice.

I have mentioned my mother in law before. She is bipolar, refuses to take her meds, and when she gets in her depressed phase she threatens suicide to get even with everyone. It is her pat answer to people, piss her off and she threatens suicide. Well things have gone from bad to worse with her. She has hooked up with this guy named Wayne. Wayne is a drunk, he lives in an apartment in the same complex as my MIL and just got out of an Alcohol treatment center. Obviously it didn't work, he's back to boozing. He has dismissed the home healthcare nurse that was checking in on her, He has dismissed the visits from the Canadian Institute for the Blind and the Kirby Center for Seniors. Her entire life now revolves around Wayne. She may not leave the apartment without him. He has taken the handset to her telephone to his apartment when he isn't there so that she cannot make any phone calls when he isn't there to overhear. He has sold all of her furniture and used the money for booze. He also ran up all of her credit cards buying booze too. We had known she was hanging around with a guy named Wayne, but every time we spoke with him he seemed nice enough and she was not complaining about him. She seemed happy so we thought that maybe, just maybe, he was good for her. We were apparently wrong. We found this all out last week when we got a call from a Lt. with the RCMP. Apparently the neighbors called the cops because he was screaming at the top of his lungs at her to "crawl across the floor to him" which makes me think there is some kind of perverted slave relationship thing going on here. All of the neighbors were out in the hallway hearing all this. The Lt. said that she again made a suicide threat, and did not appear to be in touch with reality and making accusations that he had tapped her phone (when he really just took the handset) and commented that there did not appear to be any food in the apt. He took her to the ER in Calgary to get her checked out and apparently they decided she was perfectly sane and released her. Wayne is about to be evicted by the landlord, but the MIL is still head over heels for this slimeball and refuses to stay away from him. We can't have her committed, It takes two doctors to declare her incompetent per Canadian Law and none of her doctors will do that. Hell, what do they care? It's not like THEY have to clean up the mess she makes. We can't MAKE her stay away from him.

What are we to do?