MrsH, it sounds like you are taking your situation and making it positive! Good for you. I hope this L you are meeting with on Thurs is what you need.
I really like the Law guardians recommendation for JA to step up to the plate. If you get a job at night, he should be the one to babysit...go back to school...you want to be a nurse...it betters you and the financial situation for your family. JA should be responsible for child care costs during this time.
I don't think you are using your children as pawns at all. If anything, they are going to get to spend the "extra" time with their father that JA seems to be insisting on lately.
I think JA will be a go-getter for about a month, after that his priorities will take over and he won't be available for the kids as often...that is when the judge will see you are trying your best to be independant and will let you move closer to your parents for the sake of the betterment of your situation.
I think it could work MrsH, Things are going to work out for the best for you....you deserve it...
OH, did you watch idol last night? I don't think David Cook is going to win...