I wouldn't let them put me in the middle either. But if my contract was signed by both parents then they are both my clients and I would have to let the child go with whichever parent arrived. If my contract was signed by the mother only and she gave me instructions not to allow anybody else pick up the child I wouldn't release the child to anybody but her. That's as far as I would let them involve me until I had any court ordered papers in my hands, simple.