Moving MIL into assisted living facility-how to do?(UPDATED)

Oh dear....so sorry you have to deal with this. one suggestion - a friend of mine did this when her dad refused to give up the keys - she disabled the car so that he couldn't go anywhere in it. It wouldn't run and when he got upset that it wouldn't she told him she was calling someone to come fix it. then it would either take forever to get fixed or forever for someone to come get it. Of course in your case you probably have the issue that she will call someone on her own.

I hope you can get her into care where she is safe soon.