What are my child's right in the New York State public school system receiving special education?

You need a special education attorney.

Does he have an IEP? A special education attorney like myself and others.

First it's spelled perjury. You need to go back to the magistrate with this information and ask them to have the school submit a statement.

Can I sue my teacher for forwarding my signature

I assume you mean forgery and if she did you can since that is a serious offense.

What are my legal options?

You need an attorney to protect your son and ensure the IEP is followed and get compensatory services.

Trustee recorded Notice of Sale in california on 04/20/17 with sale date of 05/10/17 . Is this possible as 21 days notice reqd

I do not know but this does not belong in the election category.

What are the regulations on a school for kicking out a student with recently found disabilities?

Your parents need an attorney in your area.

Can I sue the school for calling ACS on me and violating my daughters Civil RRights?

Yes if you can prove retaliation that is illegal and you can recover damages for that.

My 11 yr old autistic son was sprayed with hairspray by his teacher, then thrown out of the classroom

You need a special education attorney to address this discrimination.

Section 504 Plan Disability Rights

It's a violation and they should call a 504 meeting. You have an equal right to participate and they can't make changes without consulting you.