Hi J.,
Sorry to hear about your situation. I know many churches have programs to help people to meet their bills in tough times (even if you are not a member). Don't be afraid to reach out in the tough times and know that you will help others down the road. There are also lots of divorce recovery programs to help you and your kids too.
Here is an economical way to find out your legal rights. If you ultimately have to retain an attorney, you would get a 25% discount off the hourly rates too (which is a huge savings based on how much attorneys charge). Go to greatlegalhelp.com and watch the clip that explains the services. It will also help you in getting your will, living will and durable healthcare power of attorney updated, advice if you wind up selling the house and buying/leasing another one, unlimited questions, plus contract/documents reviews and more. Plans start at $17 per month and there are no long term contracts. However, once you realize the power of what you have for day to day life, you won't want to give it up. You can email me for more info and details. If you don't know your rights, you don't have any rights.
Hang in there. Life will get better. I've seen it time and time again with watching friends go through divorce. It is really tough at first, but then better situations and doors open for them down the road.
Merry Christmas.
S.