What a good Law Firm that Experienced in IEP, 504 plan and CPS Policies

My son rights and 504 plan has been violated in his school at Spencer Technology Academy. Also, he been harassed by teachers and hurt twice at school with no Innocent Report given to me. He has Anxiety, ADHD, Type 2 Diabetic and all monitor with Medications. I have spoken to the school network 3. So I need a good lawyer to assist and I have put in a complaint with DCFS on his teacher too. Now they attacking my Son thru his school grades for me reporting the school. ~ Help this Chicago Father