This sounds like a very frustrating situation. I'm sorry! frown

If your son has an IEP, the school is required by law to serve his needs, and part of that should include talking to you.

What have you done to try to communicate with the school? Have you called the school office to make an appointment to talk to the principal?

You need to establish good communication with the school, even if you decide that you will eventually HS. In the meantime, while your child is in their care, you need to connect with the school. It's just something that must happen, especially if they're threatening legal action! I mean, it's clear that something isn't working here!

Talk! Find a way, but get an appointment and talk!

Kriston