Atty. John Arthur Trenor

Atty. John Arthur Trenor

Mr. John Arthur Trenor is a lawyer practicing international law, international dispute resolution, international litigation and 1 other area of law.

Washington Washington 30 yrs experience 30 year
Call (771) 232-9635 Book Appointment

Profile Summary

About John Arthur Trenor at a glance

John Arthur Trenor is a Partner based in Washington, District of Columbia, practicing at Wilmerhale. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on litigation, adr, and international. Admitted to practice in New York (1996) and District of Columbia (1997). Educated at University of Chicago Law School (J.D., 1995) and Cornell University (B.A. Princeton, 1991). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John Arthur Trenor is a lawyer practicing international law, international dispute resolution, international litigation and 1 other area of law
  • John received a B.A. degree from Cornell University in 1991, and has been licensed for 30 years
  • John practices at WilmerHale in Washington, DC and 1 other location

Practice Areas Explained

John Arthur Trenor's Areas of Practice

Each practice area below reflects the types of cases John Arthur Trenor handles, with a brief overview of what that area of law covers.

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John Arthur Trenor is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

John Arthur Trenor is one of 73,906 adr attorneys indexed nationally. Browse adr attorneys in District of Columbia →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

John Arthur Trenor is one of 40,133 international attorneys indexed nationally. Browse international 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.

Frequently Asked

Common questions about John Arthur Trenor

Where is John Arthur Trenor's law office located?
John Arthur Trenor's law practice is located in Washington, District of Columbia. The firm is Wilmerhale. You can contact the office directly through this profile page.
What practice areas does John Arthur Trenor handle?
John Arthur Trenor focuses on litigation, adr, international. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John Arthur Trenor practiced law?
John Arthur Trenor has 30+ years of legal experience and has been licensed since 1996.
Where did John Arthur Trenor go to law school?
John Arthur Trenor earned their education at (J.D., 1995); (B.A. Princeton, 1991).
How can I contact John Arthur Trenor for a consultation?
You can contact John Arthur Trenor directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
University of Chicago Law School
- 1995
B.A. Princeton
Cornell University
- 1991

Bar Admissions

New York
Admitted: 1996
District of Columbia
Admitted: 1997

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