The lawyer said that this is the equivalent of a woman using an anonymous sperm donor and then tracking him down later to tell him he's a dad. He also said that, in the unlikely event paternity was established, the crazy mom could try to sue for back child support. It's a slim chance she would win, given that she kept the kid (if he even exists) from him, but crazier things have happened. She and the kid would also have to go to our state to file. But, essentially, at the end of the day, dh has zero obligations to an adult child he didn't know about (at the fault of the mother). I'm just praying this kid doesn't exist, because what a horrible situation for him.