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Benjamin Moses Leff
Benjamin Moses Leff is a lawyer in Washington, DC who works for American University Washington College of Law. Practice areas include Non-Profits, Taxation. Court admissions include US Tax Court. Licensed in Texas since 2000. Graduated from Yale University in 2000.
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Law school
Bar admission
Office
Disciplinary
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Benjamin Moses Leff
American University Washington College of LawWashington, DC·25 years licensed
Claim profileContact attorney
Benjamin Moses Leff is a lawyer in Washington, DC who works for American University Washington College of Law. Practice areas include Non-Profits, Taxation. Court admissions include US Tax Court. Licensed in Texas since 2000. Graduated from Yale University in 2000.
Law school
Yale University
Class of 2000
Bar admission
2000
State Bar of TX · No. 24027439
Office
4300 Nebraska Ave NW # Y240
Washington, DC 20016
Disciplinary
None on record
Clean since admission
Career history
2 observed firms
Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.
- American University Washington College OMAY 2023 — APR 2026Law Faculty · Washington, DC
- American University Washington College of LawAS OF JUN 2026Law Faculty · Washington, DC
Case data
Case data
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Practice & jurisdiction
Practice areas
- Non-Profits
- Taxation
Courts admitted
- US Tax Court
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Last refreshed Jun 2026