I am a full time live in caregiver for my mother and I hold medical and legal POA. Our agreement required me to give up my apt., Job, independence and live in the basement but when she passes, I'm to get the house. She refused to follow Drs orders and attempts dangerous activities. She is diabetic, has copd, cannot walk well and rides a motorized scooter around the house. She constantly ignores me, my daughter or my husband when we tell her she can't do something due to one of her many health issues. She increasingly claims we're trying to control her and reverts to teenage like defiance. Now she keeps threatening to go back on our agreement about the house. She dangles money and the house over my head to try and get her own way. The deed to the house is in both of our names as joint owners with survivor ownership. I've poured my entire life into getting things livable for all concerned. Now she says I treat her badly and wants to leave half to my step brother who is never around. The plan was to always split everything with him except this house. Can she jerk the house out from under me since my name is already legally on the deed and the house is paid for? I'm 51 years old and not going to be financially irresponsible enough to take on 150 thousand dollar mortgage when she dies to buy out my step brother for a house i already own half of.