Should I Help My Boomer Father?

It's normal for kids to support their parents. It can be expected by good parents. It is the incentive to be a good parent. But, his father said he can have the house after his mother dies... this means that he's planning to will the house to his wife rather than his son! And then, you have to hope your mother doesn't have a woman moment and piss the house away, or will it to her favorite child who isn't you. No, this is unacceptable. As I said, the sensible requirement is that he puts the house in your name now.

You pay his property taxes but the house stays in his name. He sells the house before he dies and pisses the money away partying overseas. If you're going to do it, then he needs to put the house in your name, that way you can't be cheated.