First of all, I am sorry bud, you are about to find out how the system is bad for men.
1. spend as many hours you have here reading
http://forum.dadsdivorce.com/
2. Find a good pro dad therapist and schedule a visit, trust me, you need to be emotionally sound to FIGHT the battle.
3. Get a good VOICE RECORDER and keep it ON all the time, check state law, for dual party/one party etc.
4. FIND a lawyer as soon as possible, one that asks for $5000 retainer (avoid)
5. DONT leave the house, if she makes threats call the police but have your recorder on first.
she will make false accusation, watch the documentary on divorce,
1. Have your lawyer DIPOSE her right away, if she lies, sue her in civil court later, MI state law allows it, but unless you dipose her, you can't.
2. Before divorce is filed go the bank and empty the accounts out in cash, they will be frozen as soon it is filed.
3. Make sure you keep constant contact with the kids, KEEP A LOG of everything,
4. call friend/exgirlfriend/parents to help out
pm me if you hvae specific questions,