The worst mistake your cousin can make is to decide to listen to his ex wife's attorney.

That attorney works for the ex... no one else. That attorney's job is to get everything from your cousin and leave the ex with everything.

He needs an attorney yesterday. ESPECIALLY with kids involved....

What? She is going to give him the kids as long as she doesn't have to pay anything? How nice of her....

Have him get an attorney before he makes a HUGE mistake. Plan on there being a bit of yelling from his wife... she won't like it that she won't get everything she would if your cousin came to the gun fight with a penknife.