The reason why you need lawyers and courts is because if they are becoming a serious problem in school, you probably could control where they go under the age of 18.
My experience with the legal system has been that you'll be better off if you can stay the hell out of it. Especially in my situation. Fuk it. "Probably" don't cut it. I want the kids to be able to come and go between their parents without any of the animosity or other erroneous feelings that has been present so far.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.