So some history from my experience. My ex went through U'm, oh look, I can't remember how many solicitors. It is a good thing for you. Solicitor shopping is what I called it. OR she is going it alone. Mate I would self rep these days. But I have read lots and spent way too many hours on this forum. But, I reckon if she self-represents you have to stay calm, quiet and poker faced.
I tend to agree with Atticus at some point you kinda have to stand your ground. But that comes with strategy and practical considerations
ok so some questions - and looking to give you some practical short term solutions. Are the kids in public schools? If so, go to the school ask for some lost and found.
Uniforms are pretty cheap at target. Get them sorted. Buy two lots worth. After that, send the kids with a note explaining why they're not in uniform.
So first court appearance - It is likely that nothing will happen. Magistrate will order mediation he might make a decision, but even then, it could take weeks for it to be written up and stamped by the court, she could keep fcuking you around until the orders arrive in the mail.
Sorry to do this to you. But remind me what are you after? Mate I had 5 a fortnight way back when. every Thursday and alternate Fri-Mon. With hindsight, I wish I had Wed- Mon. fewer opportunities to fcuk me around. BUT I think important long term that you pick the kids up from school and drop them off at school. The less you have to see of her the better.