Don't think it is that easy. I filed for childsupport and it took 6 months just to get into court to deal with it. When a parent doesn't work they can only try to impose the support but it isn't something you can bleed a turnip dry. They are required to look out for his well being as well. You sound like just because he had an affair you can get things resolved overnight for your own benefit. It isn't that easy. I never even got back support for the months I waited for the court to take my case. You don't realize it isn't so easy. Yes it is not a reason to stay in a bad marriage but there are also issues that transpire increasing the amount of tension when you break up the family. You can't rush if there are no perfect solutions. You and your kids could be emotionally drained if you take drastic measures. Look for answers then if they seem reasonable then go for it. At least tell your husband you want to leave and will be filing for child support before you leave to see what he can manage. There are childsupport agencies that will get you started. However, the paperwork will be just a headache. Then following the course of action, it just is tougher than you think. It does make you feel better if you get somewhere but it will not be a cut and dry situation. Be prepared for less than what you would expect. It usually is the way it goes.