My 83-yr-old mother has shown signs of dementia for two years; she experiences paranoia and memory loss. Today she said someone stole her mortgage and that she is going to refinance for $100,000 and move. I am concerned that she will jeopardize her financial future or otherwise harm herself. She gets hysterical if anyone suggests she goes to a doctor, and she accuses her children of wanting her in a home. I am not sure what to do.