my father just over a year ago got remarried to a woman that is about 3 years younger than him. her previous husband died from complications of alzhiemers about 6 months before they met. they dated for 2 weeks and he proposed. within the month they were married. within 3 months she was paying his bills because he couldn't do it anymore. they always eat out and he is now very unhealthy looking. he was always against gambling and now he does it regularly with her. he showed signs of memory problems before they got married. anyone who truely spends time with him can see that he is not all there mentally. he claims to have gone to the doctor and been checked for dementia and got the letter from the doctor that stated he was fine, any questions to call so my husband did and he was furious with him. she will not allow us to be with him without her in the room. we feel that she is in his life for the money because all she has talked about is selling his house and building a new one on her property. this is his life savings not hers and we feel that she is trying to get his savings for her children since she has already spent every cent of her deceased husbands money before they met. how do we go about protecting him without making him so mad that he does not talk to us anymore. what legal grounds can we persue.