Ms Andrew Lyonsberg > McDermott Will & Emery LLP > Washington DC, United States > Lawyer Profile

McDermott Will & Emery LLP Offices

McDermott Will & Emery LLP
THE MCDERMOTT BUILDING, 500 NORTH CAPITOL STREET, NW
WASHINGTON, DC 20001-1531
DISTRICT OF COLUMBIA
United States
Visit website 1 202 756 8000 1 202 756 8087

Ms Andrew Lyonsberg

Andrew Lyonsberg photo
+1 202 7568979 alyonsberg@mwe.com

Work Department

Trial

Position

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.

Andrew has been recognized in Best Lawyers: Ones to Watch (2023) for appellate practice, and was named a Rising Star in Supreme Court and appellate litigation by The Legal 500 (2022). He was also featured in the 2021 edition of The Legal 500, with clients praising his “big-picture thinking” and “sophisticated view on how the executive branch operates.”

Andrew served as a law clerk to the Honorable Kim McLane Wardlaw on the US Court of Appeals for the Ninth Circuit. While in law school, he was a forum editor of the Yale Law Journal.

Lawyer Rankings

United States > Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)

The growing appellate practice at McDermott Will & Emery LLP added seven new clients to its roster over the past year, including Astellas Pharmaceuticals, and the Electric Power Supply Association. The Washington DC-based group’s increasing activity was reflected by its recent promotion of appellate-focused lawyers Andrew Lyonsberg and Sarah Hogarth to the partnership. Among its recent key cases, the team has represented an array of multinational corporations, trade associations and financial institutions on appeals involving constitutional law, business disputes and immigration law, among other matters. Paul Hughes, who has argued before the Supreme Court nine times, co-heads the practice together with increasingly prominent next-generation partner Michael Kimberly.

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