Hi,
So sorry that you are going through this.
The only thing I had done that I wish I had done differently is exhaust all options and resources to try and make it work before resorting to a divorce. I am NOT giving you cr*p - I'm sure you are not doing this lightly. however, divorces solve nothing.... they just open another can of worms. Sometimes the worms are better than the thing that caused it and only you can make that decision. Having said that.... here are my thoughts:
yes - hire a lawyer. You can do mediation, but if you aren't agreeing, I'm not sure that will work. Lawyers can be expensive - my 1/2 of my divorce was over $7,000 because he kept sending things back and arguing details like wanting an 8:15 drop off instead of 8:00.
I absolutely would sit with a counselor who can talk about how to tell the kids as well as help you both transition into your new roles with your kids and how to effectively shift roles with EACH OTHER as you begin to co-parent.
I would also suggest you don't tell your kids anything until you know concrete information. Here is where we will live, here is where daddy will live. here is when you will stay with mommy, here is when you will stay with daddy. Don't go too much into the future or say things like "we will stay in this house until the divorce is final and then we will put it on the market and when it sells we will look for an apt." Kids don't understand that. just say "for now we will stay here - that 's all you need to worry about. mommy and daddy will take care of the rest".
Also- you will get differing opinions on giving kids the reason why. I am a HUGE believer in that it's none of their business. "This is a decision mommy and daddy made and we are doing what is best for everyone in the family, given the circumstance". If one of you starts the "daddy did..." or "mommy wanted..." your gooses are cooked. But validate their feelings. When they say "it's not fair that we can't see daddy every day" your response should be "I know you feel like it's not fair. I understand that this is hard for you". Don't say anything else.
I don't know about the job. I know pretty much no one is ordered alimony anymore,except in rare circumstances. My SIL just went through a divorce in OK. She had been a stay at home mom for 10 years and when they showed up for the judge he ordered a continum and told them to come back when she had a job and REPRIMANDED her for knowing about the divorce for 3 months but not having found employment yet (papers had been filed 3 months before their hearing) and threatened to give full custody to the dad because he was the only one who could support the kids. I would check with a laywer and find out about the judges in your area.
Typically, child support is based off of 2 things - time with the kids and income. Some states it's % of non-custodial parent only and some states (like OK) you figure the 'cost of the child' and then what % each parent pays is based of each of their income. if you don't have an income they can figure it off of what you are 'likely' to make based on education, experience, job market etc. But if you do this and then get a job making more or less you will have to pay more money to go back and have it adjusted.
Good luck. This is a super hard road that I have been down and you are going to need a lot of support and encouragement. Get a good sitter that you trust and who is available that you can call on to help you for days that you get stuck at work or when you want to go sit in a corner and cry. Sitters can be invaluable.
My thoughts are with your family.