My step dads doctor told him he has dementia a year ago. A few days later his kids were taking him to sign all kinds of papers and power of attorney to them. Then they took him out of the senior care center and left my mother with no money in their back account and she has not heard from them for 4 months now. She does not know where he is or how he is. She has stage four cancer, has heart problems and is getting a shoulder replacement. She only gets $438.00 a month. What are her legal rights?