Well in American everything in the marriage is community property. Therefore I am assuming that when they divorced some sort of division or arrangement was made about the house. I suppose if he had been going to get a part of it then that part would go him still , and her part would go to whoever was named in her will. We don't know exactly where you fit in so you would need to give a lot more info, and as previously said most people on here are UK although there are some Americans.