What will happen to the house I am living in when the owner dies?

My aunt is married to a 93 year old man. She have a marriage certificate to prove. He belives that he is not married to her. We have later come to find out that the house have been turned over into his daughter name. What is going to happen when he dies? Plus the basement is rented and someone lives downstairs. Can... show more My aunt is married to a 93 year old man. She have a marriage certificate to prove. He belives that he is not married to her. We have later come to find out that the house have been turned over into his daughter name. What is going to happen when he dies? Plus the basement is rented and someone lives downstairs. Can the wife fight and get the win? Please answer.
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