You need an attorney who practices occupational licensing law, a sub-set of administrative law.
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An attorney who practices administrative law, specifically, professional licensing law. This area of law is specialized in that it can involve all three branches of the government (executive, legislature, and judiciary). These attorneys understand the administrative law process, which differs from the civil or criminal law process, and the nuances in the laws given each of the executive agencies making the licensing decision (i.e. Department of Social Services).
My law firm (Simas & Associates, Ltd.) has years of experience in this particular area of the law. We have handled license discipline and denials of licenses before DSS in the past. You can also search for professional licensing attorneys on avvo.com or contact your local county bar association for referrals.