Atty. Andrew Lyonsberg
Andrew Lyonsberg focuses his practice on litigation in the Supreme Court and appellate courts across the country, as well as major motions at the trial-court level. He has briefed more than fifty appellate matters and dispositive motions, and has argued before the US Courts of Appeals for the Fifth, Sixth, and Seventh Circuits.
Appellate Practice Attorney · Serving Washington, DC
Profile Summary
About Andrew Lyonsberg at a Glance
Andrew Lyonsberg is a appellate attorney based in Washington, District of Columbia, practicing at McDermott Will & Schulte. Educated at Yale University (—, 2016). Recognitions include Best Lawyers in America — Appellate Practice (2026). Serves clients in Washington, DC and the surrounding metropolitan area.
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About Andrew Lyonsberg
- Andrew Lyonsberg focuses his practice on litigation in the Supreme Court and appellate courts across the country, as well as major motions at the trial-court level
- He has briefed more than fifty appellate matters and dispositive motions, and has argued before the US Courts of Appeals for the Fifth, Sixth, and Seventh Circuits
- Andrew also has extensive experience with agency litigation under the Administrative Procedure Act, including several recent victories setting aside federal agency action
- Read full biography: https://www.mwe.com/people/andrew-a-lyons-berg/
Practice Areas Explained
Andrew Lyonsberg's Areas of Legal Practice
Each practice area below reflects the types of cases Andrew Lyonsberg handles, with a practical overview of what that area of law involves and how it may apply to your situation in Washington.
Appellate Practice in Washington
Appellate attorneys for civil and criminal appeals at state and federal court.
Andrew Lyonsberg is one of 85,572 appellate attorneys indexed nationally. Browse appellate attorneys in District of Columbia →
Jurisdictional Context
Why Local Counsel Matters in Washington
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 venue, 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.
Washington Courts and Legal Process
Choosing a Washington-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.
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Professional Profile
Why Clients in Washington Choose Andrew Lyonsberg
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Andrew Lyonsberg's practice in the field of appellate.
Focused Appellate Practice
Concentrating on appellate means Andrew Lyonsberg's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Washington
A Washington-based practice means Andrew Lyonsberg attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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Andrew Lyonsberg's Practice Areas & Specializations
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