Mr. Riordan is a Senior Partner at MDASR representing claimants in Workers’ Compensation, Social Security Disability, and NYS State and NYCERS litigation. As counsel to several NYC and NYS Unions, Sean is a leading advocate for union and First Responder rights and has personally worked on numerous pieces of federal and state legislation aimed at protecting workers’ rights. Mr. Riordan was also an adjunct professor at Molloy College, teaching The Philosophy of Law and Political Philosophy. He is a member of the Association of Trial Lawyers of America; American Bar Association; New York State Bar Association, and the New York County Lawyers Association. Active in the Irish Community, Mr. Riordan has been named as one of the Top 100 Irish-American Attorneys by Irish America Magazine several times, and also received its coveted “Law & Order” award. Sean also works with various New York non-profit organizations for the betterment of the local community.