The parent who gets primary is going to have the school district.

There is just one problem with your situation and that is the status quo has been 50/50 from what I have gathered from your posts.

Document everytime you are not sent something home from school regarding your child. Document everytime they ask if it's okay with the father if the person that you designate someone to picks up your child. Send a letter to the teacher and director of the school, certified, return receipt requested, making it clear that ALL information about your child, including her academic performance, school trips, any accidents at school, being sent home (and make it clear which days you are the parent to call when your child is sick) due to illness. And give your lawyer a copy of the letter and the proof that they received it.

If you document well, even if you lose the public school argument, you may be able to get your child in a different school if you can prove the school is totally disregarding the fact that you are the parent.

I doubt you could prove that your stbx is the reason behind them cutting you out, but if you could, you would have primary in a heartbeat.

As for the court ordering you to continue paying, if you can prove that your stbx is the reason why you got fired, you may be able to have him foot the entire bill. But you need irrefutable proof that he did what you said he did. I don't doubt that he did it, but I am not the judge that will be hearing your divorce.