I honestly believe he is blowing steam it would take an act of congress for him to get custody. Rather than getting him legally kicked out of the house put it up for sale. The Judge will most likely make you sell it anyway.
I would go down and fill out legal seperation or divorce papers and temporary custody papers. That way you can legally get custody before the divorce and then he won't have a chance in hell to win if you already have custody.
-------------------- The problem isn't the game; it is that nobody knows the rules.