I have three children whom have not heard from their father for a year and not seen their father for over four years. He pays child support, not half of what he should according to my state though. I can't get a true income amount from him. He was given visitation every month but has not made attempts to see them. The kids do not want to be alone with him at this point. How can I change the order without being able to afford an attorney? I live in WA state.