About 1 yr ago my mother & grandma had heart attacks. My grandmother ended up passing days later. My mother has custody of mu niece & nephew and she is married. We offered to take my niece and nephew into our home. We brought the kids up last summer to our house and my mother came too. She decided that she would not leave. She said she can not live my stepdad. He has moved in with 1 of my brothers. My mom is mean and hateful. She can not handle the kids but if we get onto them most the time she yells at us. She tells family members lies about us all the time. She is very rude to everyone. I am sure she has vascular dementia but refuses to talk to her dr. She is very jealous if my kids come for a visit. People at the schools and kids sports try to avoid her. My husband & I can not handle anymore and we want her to move out. None of my brothers want her because is so rude, hateful and unappreciative. She is very sarcastic. What can I do?