Curriculum Vitae

William Kirtley CV

International arbitrator William Kirtley, principal of Aceris Law, is a Franco-American Harvard, Columbia and Sorbonne-trained lawyer with nearly two decades of experience specialising in international commercial arbitration, investor-State arbitration and international construction arbitration at the highest level. He is a member of the New York Bar, the Washington, D.C., Bar, and an inactive French Avocat à la Cour. He has served in arbitrations in disputes on all continents, under the UNCITRAL, ICC, ICSID, SCC, LCIA, JAMS, ICDR, CICA, CIArb, PCA, SIAC, DIAC, AFA and other arbitration rules. He is highly-ranked by the Legal 500, Leader's League and other prestigious rankings. Previously a Partner at a well-regarded Paris arbitration boutique, he was a member of the international arbitration practice groups of Shearman & Sterling LLP and Salans (now Dentons), after serving as an American Peace Corps Volunteer for two years in the Ivory Coast and working at the United Nations International Criminal Tribunal for Rwanda. He has won a variety of awards, including awards for outstanding character.


Aceris Law - Partner

Partner at the arbitration boutique Aceris Law, focusing on commercial, investment and construction arbitrations, as well as public international law disputes. Has served in ICC, LCIA, ICSID, SCC, UNCITRAL, SIAC, ICDR, JAMS, SCC and other ad hoc arbitrations, under public international law, English law, Swiss law, French law, Turkish law, United Arab Emirates law, Moldovan law, Singapore law, Malaysian law, Mexican law, Mauritanian law, various American laws (including the laws of California, Texas and Washington), Canadian law, Saudi Arabian law, Liberian law, Spanish law, Brazilian law, Angolan law, OHADA law, German law, Hong Kong law, Albanian law, Bulgarian law, Filipino law, Japanese law, Russian law and Romanian law, amongst others.


DK AARPI – Partner

Partner at the international arbitration boutique law firm DK AARPI with a former partner from Shearman & Sterling. Served in multiple ICC, ICSID, UNCITRAL and SIAC disputes involving the construction, internet advertising, the financial and steel industries. Also served as an expert for the World Bank Group with respect to arbitration-related civil procedure reform.


Lazareff Le Bars – Of Counsel 

International Arbitration Of Counsel at Lazareff Le Bars, a law firm founded by the well-known French arbitrator Serge Lazareff. Served in a variety of ICC, ICSID, CCJA and UNCITRAL international arbitrations in multilingual (primarily English, French, Spanish and Russian) disputes involving the energy, construction, consulting, pharmaceutical, aerospace and defence, banking and finance, shipping and transport, telecommunications, agricultural and steel industries.


Dentons (formerly Salans) – Senior Associate

International arbitration lawyer at law firm ranked, at the time, as the European Law Firm of the Year and the French Law Firm of the Year, and which was consistently one of the top-ranked international arbitration practice groups in Russia and the CIS. Served as counsel in disputes involving Kazakh law, Turkish law, Ukrainian law, Maltese law, English law, Iranian law, Polish law, Romanian law, French law, various U.S. laws, and private and public international law.


Shearman & Sterling – Associate

Arbitration lawyer at Shearman & Sterling’s Global Dispute Resolution Practice in Paris, classified by Chambers Global as “world-renowned” and the winner of the “Best International Arbitration Practice” in France for many years. Served in disputes under French law, English law, Algerian law, Russian law, Chinese law, Canadian law and Australian law.


United Nations International Criminal Tribunal for Rwanda – Legal Consultant

Legal Consultant for Prosecutor's Office.


United Nations Department of Political Affairs – U.N. Consultant                                  

Drafted the Repertoire of the Practice of the Security Council.


American Peace Corps Côte d'Ivoire – UEM PCV

Worked in the rural Prefecture of M’bahiakro in the Ivory Coast for 27 months on behalf of the American Peace Corps, a U.S. State Department program.



Attorney, New York

Attorney, Washington, D.C.

Avocat (Omis), Barreau de Paris



"Cleansing the (Un)clean: The Ongoing Saga of the Clean Hands Doctrine", Kluwer Arbitration Blog (September 2018)

"French courts redefine new test for violations of international public policy to set aside arbitral awards (Société MK Group c v S.A.R.L. Onix et Société Financial Initiative)", LexisNexis (February 2018)

"Arbitration in France," Getting the Deal Through (January 2018).

"The Future of International Arbitration," lecture at University of Paris II Panthéon-Assas (2015-2018).

"Comment Eviter Un Conflit Armé Au Barotseland," published in the magazine Jeune Afrique (June 2014).
Oxfirst webinar on intellectual property arbitration law and the enforcement of IP rights internationally (May 2014).

“International Arbitration: France,” published in International Comparative Legal Guides (June 2013).

“4th Funding International Arbitration London Panel Debate, panellist in conference sponsored by The Judge (June 2013)

“Should an Arbitral Tribunal Order Security for Costs When an Impecunious Claimant is Relying upon Third Party Funding?”, published in Kluwer’s Journal of International Arbitration (February 2013).

“Arbitrating in West and Central Africa: An Introduction to OHADA,” published in the Kluwer Arbitration Blog (February 2013).

“The Status of the Report of the Executive Directors on the ICSID Convention,” published in the ICSID Review-Foreign Investment Law Journal (Vol. 2, 2012).

“Complex arbitrations: multi-party and multi-contract disputes under the new ICC Rules,” presentation given at LLB Seminar (November 2012).

“International Arbitration: France 2012,” published in International Comparative Legal Guides (July 2012).

“La gestion des contentieux en Afrique : Enjeux et Stratégies,” published in MEDEF : C’est à vous (August 2012).

“Court-Ordered Discovery in the United States Under 28 USC § 1782 for Use in Foreign International  Arbitrations: Its Evolution, Current Trends, Strategic Use and Dangers,” published in the International Arbitration Law  Review (Vol. 2, June 2011).

“The Transfer of Treaty Claims and Treaty-Shopping in Investor-State Disputes,” published in The Journal of World Investment and Trade (Vol. 10, No. 3, June 2009).

Bringing Claims and Enforcing International Arbitration Awards Against Sub-Saharan African States and Parties,” published in The Law and Practice of International Courts and Tribunals (Vol. 8, No. 1, May 2009).

“The Tampa Incident: Does Australia’s Political Asylum Policy Violate International Law?”, published in the Columbia Journal of Transnational Law (Vol. 41, 2002).



List of Arbitrators of USCIB (ICC National Committee for the United States)

ICC France (ICC National Committee for France)

Expatriate Subcommittee of USCIB (ICC National Committee for the United States)

ICDR Young & International Arbitration Group

List of Arbitrators (DIAC)

Legal 500

Leader's League (Décideurs)

Kluwer Author

Swiss Arbitration Association (ASA)

Getting the Deal Through Author

International Bar Association

AFIA (Australian Forum for International Arbitration)

Advisor to Young ICCA

Editor of Vindobona Journal of International Commercial Law



Columbia University School of Law, J.D. (2002)

Dorsey & Whitney Prize

Stone Scholar

Tony Patiño Fellowship for Outstanding Character

The Sorbonne (Paris I – Panthéon-Sorbonne), Maîtrise en Droit (2004)

French J.D.-equivalent awarded with honours

Harvard University, B.A. (1997)

Degree awarded with high honors (magna cum laude)

Dean’s list all semesters

Magna cum laude thesis on the history of empiricism in pharmacology



University of Paris X (Nanterre School of Law), Lecturer on Anglo-American Business Law

University of Paris II (Panthéon-Assas), Lecturer on International Arbitration





Arabic (basic)


Bambara (West African language)

Baoulé (West African language)



Legal 500

Leader's League



International Arbitration Institute