Ezra Marcus is a highly versatile attorney sought out by colleagues and clients alike for his judgment, creativity, and analytical insight. His practice focuses on representing individuals and companies in complex civil litigation, investigations, and criminal prosecutions. He also represents lawyers and law firms in legal malpractice cases, disciplinary proceedings, and ethical disputes.
In his civil litigation practice, Ezra has helped for-profit and non-profit entities facing civil RICO claims, individuals facing allegations of securities fraud, and hospitals challenging drastic reductions in Medicare reimbursements.
In his criminal defense practice, Ezra has represented clients at every stage of the process, from investigation, bail, and discovery, to trial, sentencing and appeal. He has defended individuals facing criminal charges under Treasury sanctions regulations, campaign finance laws, and the Foreign Agents Registration Act (FARA). Ezra also advises entities seeking to comply with FARA’s requirements.
Before joining the firm, Ezra served as a law clerk for the Honorable Ketanji Brown Jackson, then of the U.S. District Court for the District of Columbia, and the Honorable Jennifer Walker Elrod of the U.S. Court of Appeals for the Fifth Circuit. In 2022, he took a leave of absence to serve as an aide to then-Judge Jackson during her Supreme Court confirmation hearings.
While in law school, Ezra served as Executive Director of Harvard’s Prison Legal Assistance Project, an organization dedicated to representing Massachusetts prisoners in their parole and disciplinary hearings. He also participated in the Veterans Law Clinic, helping clients obtain both federal and state veterans’ benefits.
Before law school, Ezra worked as an undergraduate admissions officer at Yale University.
Experience
- Member of the Zuckerman Spaeder trial team that successfully defended former White House Counsel Gregory Craig in a lengthy investigation and trial of charges based on allegations of false statements arising from a Foreign Agents Registration Act inquiry. The jury returned a not guilty verdict in September 2019.
- Conducted an independent investigation on behalf of the Maryland Medical Cannabis Commission and the Attorney General’s Office regarding allegations of conflicts of interest, bias, and undue influence in the evaluation process for medical marijuana licenses applications.
- Represented several hospitals and trade associations in judicial challenges related to the 340B drug discount program.
- Represented D.C. attorney facing professional discipline before the Board on Professional Responsibility and the D.C. Court of Appeals.
Practice Focus
Education
- Harvard Law School, J.D., cum laude, 2015
- Executive Director, Harvard Prison Legal Assistance Project
- Ames Moot Court Competition, Finalist
- Yale College, B.A., cum laude, 2010
Bar Admissions
- District of Columbia
- New York
Court Admissions
- U.S. Court of Appeals, Fifth Circuit
- U.S. Court of Appeals, Sixth Circuit
- U.S. Court of Appeals, Tenth Circuit
- U.S. District Court, District of Columbia
Clerkships
- U.S. District Court for the District of Columbia
- Hon. Ketanji Brown Jackson
- U.S. Court of Appeals for the Fifth Circuit
- Hon. Jennifer Walker Elrod
Recognitions
News & InsightZS Blog
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Litigator of the Week Runners-Up and Shout-Outs
March 27, 2026
| In the News
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Nearly Half of Zuckerman Spaeder Attorneys Receive The Best Lawyers in America® Recognitions, Including Several “Ones to Watch”
August 22, 2025
| Press Release
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Zuckerman Spaeder Announces New Partner and Counsel Promotions
January 6, 2025
| Press Release
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Best Lawyers® Recognizes 40 Zuckerman Spaeder Attorneys, Including Three “Lawyers of the Year” and Seven “Ones to Watch”
August 15, 2024
| Press Release
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Hospitals Nationwide Challenge HHS Website Technology Policy
January 24, 2024
| Press Release
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Hospital Groups Nationwide Slam Online Tracking Restrictions
January 17, 2024
| In the News
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Zuckerman Spaeder Attorneys Recognized on the DC Courts’ 2022 Capital Pro Bono Honor Roll
July 27, 2023
| Press Release
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Medicare’s 340B Cuts For 2022 Must End Now, Judge Rules
September 30, 2022
| In the News
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Zuckerman Spaeder Win Restores Federal Drug Discount Program Savings
September 30, 2022
| Press Release
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Litigators of the Week: The Zuckerman Spaeder Duo Who Challenged the Use of ‘Race-Norming’ in the NFL Concussion Settlement
March 22, 2022
| In the News