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Patrick Pearsall

Partner

Washington, D.C.

Image of Patrick Pearsall
Patrick Pearsall

Partner

Washington, D.C.

Patrick has extensive experience representing parties in commercial and investment arbitration. He served in the U.S. State Department for nearly a decade and departed as the Chief of Investment Arbitration.

Patrick has successfully arbitrated claims involving billions of dollars. He is often called upon to provide strategic counsel to parties when they face international disputes under investment treaties and has experience with nearly all of the major international commercial arbitration rules. He is a trusted adviser to Fortune 500 companies and governments alike.

In addition to his representations, Patrick was on a drafting committee for revision of the International Court of Arbitration’s (ICC) rules and led the negotiations of several bilateral and multilateral treaties. He advised on the negotiation of the investment provisions in the Trans- Pacific Partnership (TPP), the Transatlantic Trade & Investment Partnership, and the U.S.-China Bilateral Investment Treaty. He is widely recognized as one of the foremost experts on investment protection in the world.

Patrick has received several awards and serves on multiple boards. He is band ranked in Chambers, recommended in the Legal 500, and the youngest person ever listed as a “Global Leader” in the peer ranked Who’s Who Legal: Arbitration, where he is recognized as “an incredible advocate,” “whose razor-sharp mind is unmatched” and who is a “leader in public international law and investment treaty arbitration.”

He is an adjunct professor at Georgetown University Law Center where he teaches two courses on international courts and tribunals and investment arbitration. Prior to this appointment, he taught at Columbia Law School, Harvard Law School and Yale Law School.

Patrick is on the panel of arbitrators for the Hong Kong International Arbitration Centre (HKIAC), the Korean Commercial Arbitration Board (KCAB) and the International Center for Settlement of Investment Disputes (ICSID).

Client commentary: “Patrick Pearsell is an absolute rock star of Public International Law. He has an intelligence, experience and bearing that would be impressive in a lawyer nearing the end of his career. To see it in one who is just hitting his peak performing years is rare and special. There is no lawyer working in bilateral investment treaty work whom I rate more highly.”

News & insights

Panoramic view of London's skyline

Publications: 22 SEPTEMBER 2020

LCIA introduces new arbitration rules to improve efficiency and effectiveness

The London Court of International Arbitration (the LCIA) has published its new arbitration rules (the 2020 Rules) which will apply to arbitrations commenced from 1 October 2020. This is precisely six…

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Hong Kong's Securities and Futures Commission (SFC) Enforcement Actions Tracker

Publications: 07 SEPTEMBER 2020

Hong Kong’s Securities and Futures Commission (SFC) Enforcement Actions Trends and Tracker

The SFC published its annual report for 2019/2020 in June and recently published its quarterly report for Q2 2020.

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Mandatory human rights due diligence laws: The Netherlands led the way in addressing child labour and contemplates broader action

Publications: 02 SEPTEMBER 2020

Mandatory human rights due diligence laws: the Netherlands led the way in addressing child labour and contemplates broader action

There is growing momentum worldwide among governments to require companies to undertake human rights due diligence.  The Netherlands took the lead with respect to the specific issue of child labour,…

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Publications: 26 AUGUST 2020

Legal advice privilege: does a lawyer get you home and dry?

It is often assumed that if a lawyer plays some part in the creation or production of a document, it automatically becomes privileged, giving it protection from disclosure in subsequent litigation.

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Office

Washington, D.C.

Allen & Overy LLP
1101 New York Avenue, NW
Washington, D.C.
20005

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Qualifications

Professional

Admitted: District of Columbia Bar, 2009

Admitted: Bar of the State of New York, 2006

Academic

J.D., Law, Columbia University School of Law, 2005

B.A., English and Political Science, magna cum laude, Columbia College, 2002