D +33 1 79 35 22 21
M +33 68 77 38 956
vCARD Download
CV Download
barton.legum@honletlegum.com

ADMISSIONS

Paris Bar
New York Bar

languages

English
French

education

University of Paris II Panthéon Sorbonne, DEA in public international law

University of Georgia School of Law, JD (magna cum laude)

Rice University, BA in English and Managerial Studies

Barton Legum

Partner

Bart Legum is a founding partner.  He concentrates on international arbitration, both commercial and investor-State.  He has over 30 years of experience as arbitrator, counsel and expert witness.  Civil law, common law and public international law have governed in cases he addressed.  His case experience spans a wide variety of different sectors.  These include energy, mining, construction, pharmaceuticals, banking, manufacturing, telecommunications and others.  He is frequently appointed in cases involving States or state enterprises as well as business-business disputes.  He has acted as conciliator as well as arbitrator.

Bart is a member of the Board of the Arbitration Institute of the Stockholm Chamber of Commerce.  He is a Past Chair of the American Bar Association’s Section of International Law, a professional organization with over 20,000 members in 90 countries.   The President of the World Bank designated him as a member of the ICSID Panel of Conciliators.

In addition to decades of private practice at prominent international law firms, Bart’s career has included years of government service.  He has served both as a law clerk to a US federal court of appeals judge and in the Office of the Legal Adviser of the US State Department.  In that latter role, he acted as lead counsel for the US Government in defending the first arbitrations against it under the investment chapter of the North American Free Trade Agreement.  The US won every case heard under his tenure.

Bart also serves as editor of two publications:  International Litigation Strategies and Practice, an ABA publication now going into its third edition; and The Investment Treaty Arbitration Review, a Law and Business publication going into its seventh edition.

A perfect oral advocate, is very diligent and works with every detail of a case as thoroughly as possible.
Chambers

Barton Legum is exceptionally intelligent and insightful. He understands the energy business very well and always recommends forward-looking solutions.
Legal 500

Barton Legum provides a strong intellectual approach and has exceptional persuasive skills.
Legal 500

Bart Legum “has exceptional knowledge, experience and skill” in conducting ICSID cases.
Who’s Who Legal

Bart is a member of many professional associations, including the American Bar Association, the International Bar Association, the American Society of International Law and the International Council for Commercial Arbitration.  He frequently publishes and speaks on arbitration, and has taught investment treaty arbitration at the University of Paris I Panthéon Sorbonne.

Prior to founding Honlet Legum Arbitration, he was a partner at an international law firm, where he served as global co-chair for litigation and dispute resolution and head of the investment treaty arbitration practice.

Barton Legum

Partner

Bart Legum is a founding partner.  He concentrates on international arbitration, both commercial and investor-State.  He has over 30 years of experience as arbitrator, counsel and expert witness.  Civil law, common law and public international law have governed in cases he addressed.  His case experience spans a wide variety of different sectors.  These include energy, mining, construction, pharmaceuticals, banking, manufacturing, telecommunications and others.  He is frequently appointed in cases involving States or state enterprises as well as business-business disputes.  He has acted as conciliator as well as arbitrator.

Bart is a member of the Board of the Arbitration Institute of the Stockholm Chamber of Commerce.  He is a Past Chair of the American Bar Association’s Section of International Law, a professional organization with over 20,000 members in 90 countries.   The President of the World Bank designated him as a member of the ICSID Panel of Conciliators.

In addition to decades of private practice at prominent international law firms, Bart’s career has included years of government service.  He has served both as a law clerk to a US federal court of appeals judge and in the Office of the Legal Adviser of the US State Department.  In that latter role, he acted as lead counsel for the US Government in defending the first arbitrations against it under the investment chapter of the North American Free Trade Agreement.  The US won every case heard under his tenure.

Bart also serves as editor of two publications:  International Litigation Strategies and Practice, an ABA publication now going into its third edition; and The Investment Treaty Arbitration Review, a Law and Business publication going into its seventh edition.

D +33 1 79 35 22 21
M +33 68 77 38 956
vCARD Download
CV Download
barton.legum@honletlegum.com

ADMISSIONS

Paris Bar
New York Bar

languages

English
French

education

University of Paris II Panthéon Sorbonne, DEA in public international law

University of Georgia School of Law, JD (magna cum laude)

Rice University, BA in English and Managerial Studies

A perfect oral advocate, is very diligent and works with every detail of a case as thoroughly as possible.
Chambers

Barton Legum is exceptionally intelligent and insightful. He understands the energy business very well and always recommends forward-looking solutions.
Legal 500

Barton Legum provides a strong intellectual approach and has exceptional persuasive skills.
Legal 500

Bart Legum “has exceptional knowledge, experience and skill” in conducting ICSID cases.
Who’s Who Legal

Bart is a member of many professional associations, including the American Bar Association, the International Bar Association, the American Society of International Law and the International Council for Commercial Arbitration.  He frequently publishes and speaks on arbitration, and has taught investment treaty arbitration at the University of Paris I Panthéon Sorbonne.

Prior to founding Honlet Legum Arbitration, he was a partner at an international law firm, where he served as global co-chair for litigation and dispute resolution and head of the investment treaty arbitration practice.