I don't mean to throw a wrinkle in things but the state of MD actually requires mediation where there is a child involved until it is demonstrated that mediation won't work. He doesn't need to be "cooperative" but just willing to compromise on something. It takes an experienced mediator but they will make sure that no one gets verbally abused or raked over the coals. Usually they will just matter of factly address custody, visitation, assets and see what stuff you may already agree on, then they go issue by issue until they can create an agreement on most or all issues.
