Here in Australia custody rights happen with the
divorce usually (its in our
divorce papers) but it can happen at any time if the need arises, just means more money and lawyer/court costs. And like mizzztaylor said, unless they are adopted they still have to pay child support, don't let him get out of that one, thats what alot of these men try to do, think if they have nothing to do with them they won't have to pay for them.