Atty. Robert C. Cassidy, Jr.

Atty. Robert C. Cassidy, Jr.

Mr. Cassidy focuses on legal issues raised by cross-border business transactions, including antidumping and countervailing duty proceedings, economic sanctions, export controls and customs issues.

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Profile Summary

About Robert C. Cassidy, Jr. at a glance

Robert C. Cassidy, Jr. is a international attorney based in Washington, District of Columbia, practicing at Cassidy Levy Kent LLP. Educated at University of Pennsylvania (J.D., 1974). Recognitions include Best Lawyers in America — International Trade and Finance Law (2026). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Mr. Cassidy focuses on legal issues raised by cross-border business transactions, including antidumping and countervailing duty proceedings, economic sanctions, export controls and customs issues. He is experienced in devising strategies for using trade law procedures, such as the antidumping laws, to achieve business objectives and in resolving disputes between companies and the US government arising from sanctions, export controls and customs laws.

Mr. Cassidy served as General Counsel of the Office of the US Trade Representative from 1979-1981 and International Trade Counsel to the US Senate Committee on Finance from 1975-1979. As General Counsel of USTR, Mr. Cassidy was the senior legal officer of the US government responsible for issues arising under the General Agreement on Tariffs and Trade. He oversaw US implementation of the agreements reached in the Tokyo Round of Multinational Trade Negotiations and was the lead US negotiator with Japan on market access issues, including procurement by Nippon Telegraph & Telephone Corporation. As International Trade Counsel to the Finance Committee, Mr. Cassidy was a creator of the procedures for consideration of legislation implementing trade agreements — procedures known today as the “fast track” or “trade promotion authority” procedures. He was also a primary architect of the modern antidumping and countervailing duty statutes enacted in the Trade Agreements Act of 1979.

Mr. Cassidy was a partner at WilmerHale where he was leader of the firm’s International Practice Group and the Trade Group. Mr. Cassidy joined Cassidy Levy Kent (USA) LLP when it was established in early 2011.

Honors

  • Listed as a leader in the field of International Trade: Trade Remedies & Trade Policy by Chambers Global: The World’s Leading Lawyers
  • Recognized for his exceptional international trade practice in Chambers USA: America’s Leading Lawyers for Business
  • Consistently selected by peers for inclusion in Best Lawyers in America in the areas of international trade and finance law
  • Recognized as a leader in trade and customs law in multiple editions of Who’s Who Legal, The International Who’s Who of Business Lawyers
  • Selected as a Washington DC Super Lawyer

Practice Areas Explained

Robert C. Cassidy, Jr.'s Areas of Practice

Each practice area below reflects the types of cases Robert C. Cassidy, Jr. handles, with a brief overview of what that area of law covers.

International Law

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

Robert C. Cassidy, Jr. 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 Robert C. Cassidy, Jr.

Where is Robert C. Cassidy, Jr.'s law office located?
Robert C. Cassidy, Jr.'s law practice is located in Washington, District of Columbia. The firm is Cassidy Levy Kent LLP. You can contact the office directly through this profile page.
What practice areas does Robert C. Cassidy, Jr. handle?
Robert C. Cassidy, Jr. focuses on international. Each practice area listed reflects experience handling cases of that type in District of Columbia.
Where did Robert C. Cassidy, Jr. go to law school?
Robert C. Cassidy, Jr. earned their education at (J.D., 1974).
How can I contact Robert C. Cassidy, Jr. for a consultation?
You can contact Robert C. Cassidy, Jr. 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.
What awards or recognition has Robert C. Cassidy, Jr. received?
Robert C. Cassidy, Jr.'s notable recognition includes: Best Lawyers in America — International Trade and Finance Law.

Education

J.D.
University of Pennsylvania
- 1974

Awards

Best Lawyers in America — International Trade and Finance Law
- 2026

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