Need Social Security Disability Lawyer

My son is a brittle T1D.  We have had numerous hospitalizations and complications over the past 10 years of managing him.   We thought our application for disability benefits would be an easy case.  We just received word that they have denied our claim.  We plan on filing an appeal, but feel we need an advocate to assist us in better articulating our claim.  We need a lawyer who specializes or has experience in this area of law.  Any suggestions or ideas would be greatly appreciated.