Atty. Mark L. Hanin
Mark Hanin advises companies and individuals as they navigate government and regulatory investigations and litigation. Prior to rejoining WilmerHale, he was a postdoctoral fellow and Fritz Family fellow in the Ethics Lab of the Kennedy Institute of Ethics at Georgetown University, where he taught a course on data ethics and carried out research on technology-related topics, including privacy and digital media.
Profile Summary
About Mark L. Hanin at a glance
Mark L. Hanin is a government attorney based in Washington, District of Columbia, practicing at Wilmer Cutler Pickering Hale and Dorr LLP. Admitted to practice in District of Columbia, The District of Columbia Bar and New York, New York State Bar Association. Educated at Yale University (JD) and University of Cambridge (PhD). Recognitions include Best Lawyers in America — Government Relations Practice (2026). Serands clients in Washington, DC and the surrounding metropolitan area.
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About
- Mark Hanin advises companies and individuals as they navigate government and regulatory investigations and litigation
- Prior to rejoining WilmerHale, he was a postdoctoral fellow and Fritz Family fellow in the Ethics Lab of the Kennedy Institute of Ethics at Georgetown University, where he taught a course on data ethics and carried out research on technology-related topics, including privacy and digital media
- He also contributed to grant-funded projects, including developing a new framework for administrative data sharing and co-designing workshops on AI ethics for policymakers with Georgetown’s Center for Security & Emerging Technology
- Mr. Hanin previously clerked for the Honorable Stephen F. Williams of the US Court of Appeals for the District of Columbia Circuit
Practice Areas Explained
Mark L. Hanin's Areas of Practice
Each practice area below reflects the types of cases Mark L. Hanin handles, with a brief overview of what that area of law covers.
Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.
Mark L. Hanin is one of 132,225 government attorneys indexed nationally. Browse government attorneys in District of Columbia →
Jurisdictional Context
Why local counsel matters in District of Columbia
Practicing law in District of Columbia. Legal matters in District of Columbia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Washington are typically filed in the local municipal court or the appropriate District of Columbia state district court, depending on subject matter and amount in controversy. An attorney licensed in District of Columbia brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in District of Columbia courts without local counsel or pro hac vice admission.
Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.
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