People

Based in New York, Isabel is a partner in the International Arbitration group. She has more than 17 years of experience advising clients in complex, high-profile, and high-value international disputes—both commercial and treaty arbitrations with host governments. Fluent in English, Spanish, and French, she focuses on energy, infrastructure, and telecommunications projects worldwide. Her matters often exceed US$ 1 billion in dispute and are in the vanguard of legal, factual, and technical developments in international arbitration. In 2021, Who’s Who Legal recognized Isabel as a “Future Leader – Partners” in international arbitration. She has also been recognized multiple times as a “Rising Star,” including by Law360 (2019) and Legal 500 (2013).

Isabel’s practice covers every stage of an international dispute, from drafting arbitration agreements and pre-dispute advice, to representing parties in the arbitration proceedings and counseling through the final phases of award recognition, enforcement, and set-aside.

Isabel also negotiates settlement agreements for complex international disputes and advises on international structuring of projects and corporations to maximize protection of investments under international law. Her practice includes seating as arbitrator. She often speaks at seminars and workshops on international arbitration topics.

Isabel holds a law degree (JD equivalent) from Universidad Complutense of Madrid (Spain) and another law degree (JD equivalent) from Universitè Paris I Panthèon-Sorbonne (France). She also obtained a Master in Corporate Law from Instituto de Empresa in Madrid, Spain.

Isabel is a member of the Madrid Bar.  She is admitted only in Spain.  She is registered as a Foreign Legal Consultant in the State of New York.

Memberships

  • Chair of the Translation Committee of the ICDR.
     
  • Member of the International Law Committee of the City Bar of New York.
     
  • Appointed to the Roster of Neutrals of the ICDR.
     
  • Member of the International Center for Dispute Resolution, Young & International.
     
  • Member of the London Court of International Arbitration, Young International Arbitration Group.

Publications

  • “A Defense of the IBA Guidelines on Party Representation”, in Contemporary Issues in International Arbitration and Mediation: The Fordham Papers 2014 (with R. Doak Bishop),  Edited by Arthur W. Rovine (Brill Nijhof, 2015).
     
  • “Fair and Equitable Treatment - Evolution or Revolution?” in Investment Treaty Arbitration and International Law, Vol. 2 (Juris Publishing, 2009).
     
  • “The Registration of an ICSID Arbitration Request” (Cameron May Publications, 2007). Paper for the Conference Commercial and Investment Arbitration in Latin America: New Challenges for Governments, Corporations and Practitioners, Quito, Ecuador, November 2007.

Speaking Engagements

  • “Drafting Dispute Resolution Clauses: Practices and Trends:” reporter of ICDR and ICDR Y&I Tertulia Sessions at 2015 AAA/ICDR International Arbitration Conference, Miami, Florida, January 2015.
     
  • “Selecting the Best Mechanism for Resolution of Disputes in Commercial Contracts,” speaker at the CANACO-ICDR-UANL Practical Session on Mechanisms for Dispute Resolution,  Monterrey, Mexico, February 2011.
     
  • "How to Protect the Deal — What Corporate Lawyers Need to Know About Arbitration," panelist at the ABA Section of International Law Fall Meeting, Paris, France, November 2010.
     
  • "How to Protect the International Deal: Tailoring the Arbitration Clause and Arbitration Procedure — Discovery,” panelist at the State Bar of Texas International Law Section 22nd Annual Institute, Houston, Texas, March 2010.
     
  • “Witness and Expert Evidence in International Arbitration” Panelist at the International Arbitration Practical Sessions of the Mexico City Chamber of Commerce (CANACO), Mexico City,  Mexico, June 2009.
     
  • “Advocacy in International Arbitration” Panelist at the USCIB Young Arbitrators Forum Seminar, Houston, Texas, June 2008.
     
  • “Fair and Equitable Treatment - Evolution or Revolution?” Speaker at the Second Annual Investment Treaty Arbitration Conference: A Debate and Discussion, Washington DC, April 2008.
     
  • “The Initiation of an Investment Arbitration: How to Get Off to a Good Start” Panelist at the Conference Commercial and Investment Arbitration in Latin America: New Challenges for Governments, Corporations and Practitioners, Quito, Ecuador, November 2007.
     
  • “Jurisdiction and the Internet: It’s a Small World After All (EU Law Perspective)” Speaker at the 27th Annual Conference of the National Association of Women Judges, Houston, October 2005.
Full Bio

Matters

Won a US$ 2.2 billion ICSID Award on behalf of Unión Fenosa Gas against the Arab Republic of Egypt involving to treaty violations relating to the failure to supply gas under a long-term gas supply agreement.

Obtained full dismissal of force majeure counterclaim on behalf of Unión Fenosa Gas against EGAS in CRCICA arbitration dispute relating to a long-term gas supply contract.

Won a US$ 96 million final award on behalf of Chevron Corporation in an UNCITRAL arbitration against the Republic of Ecuador seated in The Hague related to undue delays by Ecuadorian courts.

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Matters

Won a US$ 2.2 billion ICSID Award on behalf of Unión Fenosa Gas against the Arab Republic of Egypt involving to treaty violations relating to the failure to supply gas under a long-term gas supply agreement.

Obtained full dismissal of force majeure counterclaim on behalf of Unión Fenosa Gas against EGAS in CRCICA arbitration dispute relating to a long-term gas supply contract.

Won a US$ 96 million final award on behalf of Chevron Corporation in an UNCITRAL arbitration against the Republic of Ecuador seated in The Hague related to undue delays by Ecuadorian courts.

Representing Chevron Corporation in a treaty arbitration against the Republic of Ecuador seated in The Hague, concerning the US$9 billion environmental judgment issued by the Ecuadorian courts in Lago Agrio, resulting in precedent-setting awards in favor of Chevron, including a finding of denial of justice and treaty breaches by Ecuador’s courts, as well as several unprecedented interim measures awards ordering Ecuador to prevent enforcement of the court judgment.

Representing The Renco Group in complex, high-stakes parallel treaty and contractual arbitrations against the Republic of Peru and Activos Mineros.

In 2020, Who’s Who Legal named Isabel a “Rising Star.”

In 2019, Law360 named her “Rising Star.”

In 2015, GAR 100 said of her: “Another client described the firm’s performance as “outstanding” and “among the top best worldwide”, giving a nod to … senior associate Isabel Fernández de la Cuesta in New York.”

In 2013, Legal 500 Latin America 2013 recommended Isabel in the area of international arbitration.

Matters

Won a US$ 2.2 billion ICSID Award on behalf of Unión Fenosa Gas against the Arab Republic of Egypt involving to treaty violations relating to the failure to supply gas under a long-term gas supply agreement.

Obtained full dismissal of force majeure counterclaim on behalf of Unión Fenosa Gas against EGAS in CRCICA arbitration dispute relating to a long-term gas supply contract.

Won a US$ 96 million final award on behalf of Chevron Corporation in an UNCITRAL arbitration against the Republic of Ecuador seated in The Hague related to undue delays by Ecuadorian courts.

See more
Icon close

Close

Matters

Won a US$ 2.2 billion ICSID Award on behalf of Unión Fenosa Gas against the Arab Republic of Egypt involving to treaty violations relating to the failure to supply gas under a long-term gas supply agreement.

Obtained full dismissal of force majeure counterclaim on behalf of Unión Fenosa Gas against EGAS in CRCICA arbitration dispute relating to a long-term gas supply contract.

Won a US$ 96 million final award on behalf of Chevron Corporation in an UNCITRAL arbitration against the Republic of Ecuador seated in The Hague related to undue delays by Ecuadorian courts.

Representing Chevron Corporation in a treaty arbitration against the Republic of Ecuador seated in The Hague, concerning the US$9 billion environmental judgment issued by the Ecuadorian courts in Lago Agrio, resulting in precedent-setting awards in favor of Chevron, including a finding of denial of justice and treaty breaches by Ecuador’s courts, as well as several unprecedented interim measures awards ordering Ecuador to prevent enforcement of the court judgment.

Representing The Renco Group in complex, high-stakes parallel treaty and contractual arbitrations against the Republic of Peru and Activos Mineros.

In 2020, Who’s Who Legal named Isabel a “Rising Star.”

In 2019, Law360 named her “Rising Star.”

In 2015, GAR 100 said of her: “Another client described the firm’s performance as “outstanding” and “among the top best worldwide”, giving a nod to … senior associate Isabel Fernández de la Cuesta in New York.”

In 2013, Legal 500 Latin America 2013 recommended Isabel in the area of international arbitration.

Credentials

Master in Corporate Law, Instituto de Empresa Madrid, Spain

J.D., Complutense University of Madrid, Spain

J.D., Sorbonne University, Paris I, France

Spain

French

Spanish