I don't know what to tell you to do. I'm not a lawyer and don't want to be one. Everyone's circumstances with family law case is different. Every jurisdiction is different.

What country are you in? State? Is it a cross-state/province case? How long has it been going on?

Again, I can't help you navigate it. Only the perspectives tell you what helped me.

I'm a non-custodial mom.

You're not alone. Did you look at @familyprotection and start following them?