She can still get SSI and medicaid and continue with child support. SSI will determine what they will pay then subtract from it what you pay as CS. Either way CP gets the same amount. She better watch out though cause there is a lot of fine print. Once you put a disability on record it is never removed so if he is high functioning and goes to college he will have a hard time getting a job because of disability on record. Insurance will exclude his disability for life. If he chooses to live in dorms or move out of moms or has to live in a facility (state center,group home,etc.). Mom is not entitled to keep the money. I have a special needs child and I have never revealed anything in court. I even agreed to a minimal (100$/month) fixed rate on medical support. I am CP and I pay all premiums and out of pocket (NCP only pays $100/mo.) even though it costs me about 500/mo in medical alone for one child. He is high functioning and I dont want it in court documents as it may limit him in the future. One good indicator would be to ask that CP apply for SSI if he doesnt qualify then the courts will not accept the disability claim. Disability has to be a significant impairment of mind or body. Basically she has to proof he cant function in day to day activities. Get a full workup mentally and physically (IQ testing,psychologist evaluation, and head to toe physical) and go from there.