Chaffetz Lindsey Dominates International Arbitration and Enforcement Rankings in Chambers USA 2025

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Chaffetz Lindsey Dominates International Arbitration and Enforcement Rankings in Chambers USA 2025

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June 2025—The recently released 2025 Chambers USA Guide marks another milestone in the Chaffetz Lindsey’s team’s recognition as the leading US-based international arbitration and enforcement boutique. The team boasts seven ranked lawyers across three categories—the equal highest number of active lawyers of any firm in the US.  Recognized lawyers cover elite Band 1 leaders to Band 6 rising stars, demonstrating the strength and depth of the firm’s bench.

The firm’s international arbitration team continues to be ranked in “International Arbitration: The Elite” as the only New York-based boutique, placing it among top-tier global firms.

Chaffetz Lindsey’s six ranked lawyers appearing in the “International Arbitration: Counsel” table evidences the breadth and diversity of the team. New this year, Counsel May Khoury, is ranked as an “Associate to Watch,” recognizing emerging talent. Anibal Sabater, Caline Mouawad, James Hosking, Yasmine Lahlou, and Gretta Walters continue to be recognized in a group that one client described as “absolutely a force to be reckoned with.”

Andy Frischknecht and Yasmine Lahlou have again earned Band 1 recognition in the highly regarded International Arbitration: Enforcement rankings. Andy and Yasmine lead a majority of the firm’s major award and enforcement engagements. This marks the fourth year the firm has been recognized for its specialized practice in arbitration enforcement. With two Band 1 lawyers in this category, Chaffetz Lindsey is uniquely positioned to manage complex global enforcement mandates with boutique agility and elite capability.

A source close to the team noted, “They are always on point, prepared and ready.”

Anibal Sabater and James Hosking have also been named among the top Arbitrators in the country.

Sources had this to say about Chaffetz Lindsey partners:

  1. James Hosking “is as sharp as a surgeon’s knife.”
  2. Andreas Frischknecht’s “advice and awareness is enviable.”
  3. Yasmine Lahlou “is incredibly bright and super collegiate to work with.”
  4. Caline Mouawad [has a] “pragmatic, client-oriented mindset. She was able to figure out how to put the company’s priorities first.”
  5. Anibal Sabater “is extremely reliable, and it gives me comfort knowing that everything is under control. The experience he has is highly valuable.”
  6. Gretta Walters “is a lawyer’s lawyer. She is professional and outstandingly smart.”
  7. May Khoury’s work left one source “impressed.”

To view the firm’s International Arbitration and Enforcement profile, visit our website or the Chambers USA website.  For a full breakdown of Chaffetz Lindsey’s Chambers USA International Arbitration Rankings, see below.

May Khoury Moderates Paris Arbitration Week Panel

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April 2025—Chaffetz Lindsey’s May Khoury will moderate the panel “Bridging the Gap: Streamlining Dispute Resolution for Investment and Trade in the OIC Region” on Friday, April 11th as part of Paris Arbitration Week.

The expert panel, featuring Professor Kamalia Mehtiyeva (University of Paris-Est Créteil), Dr. Umar A. Oseni (Organisation of Islamic Cooperation Arbitration Centre), Ahmed Abdel Hakam (Volterra Fietta), Nadya Rouben (DLA Piper), and Zhazgul Altynbekova (International Court of Arbitration at the CCI Kyrgyzstan), will illuminate the path to streamlined investment and trade within the OIC region.

The session will dissect procedural complexities, unveil the OIC Arbitration Centre’s cutting-edge innovations, delve into investment treaty nuances, and explore strategies to amplify the Centre’s global reach.

Learn more here.

Chaffetz Lindsey Promotes Matilde Flores and May Khoury to Counsel

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New York, New York – Chaffetz Lindsey is pleased to announce that Matilde Flores and May Khoury have been promoted to Counsel effective January 1, 2025.

Matilde Flores’ practice focuses on investment arbitration, international commercial arbitration, and public international law disputes. She has recently played a significant role in several high-stakes construction, energy and life sciences cases involving disputes in the US, Mexico, and Argentina. Matilde is an active member of the international arbitration community—she was appointed Co-Chair of the Latin America Interest Group at the America Society of International Law in 2024 and is involved in the ICC Young Arbitrators Forum and the LCIA Young International Arbitration Group. Legal 500 Latin America has recognized Matilde as a Leading Associate in 2025.

“I have had the pleasure of working closely with Matilde Flores on several high stakes hearings in English and Spanish,” said Chaffetz Lindsey partner Anibal Sabater. “She is exceptionally dedicated and talented, and a pleasure to work with.  We are delighted to announce her promotion to Counsel and look forward to her continued contribution to our clients’ success in her new role.  Given her legal acumen and commitment to excellence, I am sure she will thrive in her new position.”

Prior to joining Chaffetz Lindsey, Matilde was based in Paris as an associate in the arbitration practice of an international law firm. She graduated with a B.A. (with First Class Honors) and J.D. from McGill University in Montreal. Matilde has practiced law in Mexico City, Paris, and New York and is fluent in English, Spanish, and French.

May Khoury has extensive experience in commercial and investment disputes involving across the Americas, the Middle East, and Africa. Most recently, she has worked on complex cases involving an infrastructure project in Panama, a power plant in Mexico, and ISDS cases involving Argentina, the Czech Republic, Mexico and the UAE.  She is trilingual in English, Arabic, and French and has participated in proceedings in all three languages.

Together with Chaffetz Lindsey partners Yasmine Lahlou and Caline Mouawad, May has been particularly involved in the firm’s MENA (Middle East and North Africa) practice. She is a member of the New York City Bar Middle Eastern & North African Affairs Committee, and is among five international arbitration practitioners who launched ArabArb, a networking group for international arbitration practitioners with roots, affinity, or interest in the Arab World. The organization was nominated for the GAR: Equal Representation Arbitration Pledge Award in 2024.

“May is a very talented lawyer whose broad international experience and impressive language skills have made a significant contribution to our arbitration practice. While her encyclopedic knowledge of ISDS arbitration has been an asset since joining us six years ago, more recently May has shown she is equally adept in commercial disputes,” commented Chaffetz Lindsey founding partner and head of the firm’s international arbitration practice James Hosking.

Prior to joining Chaffetz Lindsey, May worked at leading international law firms in Paris, Dubai, and New York. She graduated with honors from Harvard University (B.A.), Institut d’Etudes Politiques de Paris (M.A.), and Boston College Law School (J.D.).

About Chaffetz Lindsey

Chaffetz Lindsey is a leading international arbitration and litigation boutique committed to providing business-minded solutions for our clients.  From its New York base, the firm helps clients resolve complex disputes before US courts and in front of arbitral tribunals around the world.

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Yasmine Lahlou and May Khoury Deliver ISLP International Arbitration Four-day in-Person Training Program to Guyana Government

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August 2024—Chaffetz Lindsey’s Yasmine Lahlou and May Khoury ran a workshop on “International Arbitration in Practice” for the Government of Guyana through the Attorney General’s Chambers & Ministry of Legal Affairs, in collaboration with the International Senior Lawyers Project (ISLP) and Winston & Strawn, which took place in Georgetown, Guyana from Monday, August 26 until Thursday, August 29.

Scheduled to take place on the heels of the adoption of the modern Guyana Arbitration Act 2024, the four-day workshop was designed to further enhance the expertise of the attendees, namely attorneys from the Attorney General’s Chambers, those employed in the public sector, as well as members of the Guyana and Berbice Bar Associations participated in the training.

At the opening of the workshop, the Hon. Mohabir Anil Nandlall SC MP, Attorney General and Minister of Legal Affairs underscored the importance of the training, noting that arbitration is the preferred method to settle commercial disputes and will pair well with the transformation taking place across every sector of the country.

Yasmine is a board member of the ISLP.

Learn more about the event here.

About the International Senior Lawyers Project

The International Senior Lawyers Project provides pro bono legal assistance to governments and civil society organizations in the Global South and in countries transitioning to democracy and market-based economies, leveraging global legal resources in alignment with client needs to support just, accountable and inclusive development.

May Khoury Joins London International Disputes Week Panel on Saudi Awards and Judgements

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June 2024—Chaffetz Lindsey’s May Khoury will join the London International Disputes Week event “Saudi Arabia: A deep dive into enforcement under the NY Convention in Saudi Arabia and enforcement of Saudi Awards and Judgements in the U.S. and U.K.” on Thursday, June 6th.

The event will include deep-dive into enforcing U.K. and U.S. based Court judgments and international arbitral awards in Saudi Arabia and KSA based international arbitral awards in the U.K. and U.S. under the New York Convention, with a particular focus on issues that may arise and what in-house counsel and practitioners should be aware of in drafting arbitration agreements and enforcing or challenging arbitral awards.

May will be joined by Drew Holiner (Monckton Chambers), Dr. Ahmad Alkhamees (Harasani & Alkhamees Law Firm), Dr. Hamid Harasani  (Harasani & Alkhamees Law Firm), Christian P. Alberti (Saudi Centre for Commercial Arbitration) and Tatiana Minaeva (RPC).

Learn more about the event and London International Disputes Week here.

May Khoury to Speak on ICC YAAF Panel in Dubai

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February 2024—Chaffetz Lindsey’s May Khoury will join the upcoming the ICC Young Arbitration & ADR Forum (YAAF) event taking place in Dubai on February 28th. The event “Wrestling the Leviathan – Illegality and Corruption in Arbitration” takes place parallel to the 12th ICC MENA Conference on International Arbitration and will feature an interactive discussion on illegality and corruption issues in international arbitration.

Practitioners from diverse jurisdictions will address questions on the subject, such as the difference between illegality and corruption, the arbitrability of corruption allegations, the burden and standard to prove corruption in arbitral proceedings, public policy considerations, sua sponte investigation of corruption issues by arbitral tribunals, the sanctions available to arbitrators, and how practitioners can best address these issues in practice.

May will join the panel composed of Yacine Francis (Allen & Overy), Rami Chahine (Meltem Avocats), Salma Abdelaziz (Meysan Partners) and Fakhruddin Valika (ICC International Court of Arbitration).

The panel discussion will be followed by a networking reception to continue the dialogue. Learn more and register for the event here.

Chaffetz Lindsey is pleased to sponsor the event.

May Khoury to Speak at 2024 Riyadh International Disputes Week

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February 2024— May Khoury is set to speak during Riyadh International Disputes Week on Sunday, March 3rd. May will join the panel “International Arbitration: Enforcement under the NY Convention – theory vs reality: a Saudi, U.K., and U.S. perspective for GCC in-house counsel and practitioners”.

The discussion will present a deep-dive into enforcing GCC-based international arbitral awards in the U.K. and U.S. under the New York Convention, with a particular focus on issues that may arise and what in-house counsel and practitioners should be aware of in drafting arbitration agreements and enforcing or challenging arbitral awards.

Panelists include:

The event is presented by California Arbitration, in collaboration with Harasani & Alkamees Law Frim, Monckton Chambers and Musick Peeler.

Riyadh International Disputes Week will take place from March 3rd-March 7th bringing together key players in the dispute resolution market to explore ADR realities and opportunities in the Middle East’s largest economy. Learn more and register for the event here.

ArabArb Nominated for 2024 GAR Awards: Equal Representation in Arbitration Pledge Award

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February 2024– ArabArb, co-founded by Chaffetz Lindsey’s May Khoury, has been nominated for the Equal Representation in Arbitration Pledge Award as part of the 2024 GAR Awards taking place during Paris Arbitration Week. ArabArb is an independent network that aims to unite, promote, and serve the global arbitration community with roots, affinity, or interest in the Arab World.  It also strives to increase the visibility of diverse and qualified counsel, arbitrators, and experts who are particularly suited to handle disputes relating to the Arab World.

ArabArb was founded last year by five Arab arbitration practitioners: Randa Adra of Crowell & Moring, Cherine Foty of Covington & Burling, Lillian Khoury of Steptoe & Johnson, May Khoury of Chaffetz Lindsey and Nour Nicolas of Foley Hoag. The group’s founders now constitute its all-female board. Chaffetz Lindsey’s Caline Mouawad and Yasmine Lahlou sit on the advisory committee of this women-led group, making three out of eleven members represented by the Chaffetz Lindsey team.

Voting for the 2024 GAR Awards will remain open until Monday, February 12th. To vote visit:  https://globalarbitrationreview.com/article/gar-awards-2024-voting-now-open

Learn more about ArabArb here.

Kluwer Arbitration Blog Publishes Articles by David Blackman, May Khoury, Alicia Yeo Articles Recapping NYAW 2023

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December 2023–Chaffetz Lindsey’s David Blackman, May Khoury and Alicia Yeo authored articles highlighting several events that took place during the 2023 New York Arbitration Week. Each article, published in the Kluwer Arbitration Blog, gives an in-depth look into the sessions. New York Arbitration Week took place Monday, November 13th through Friday, November 17th in New York City.

“New York Arbitration Week 2023 Recap – Tales from the Hearing Room: ‘What Would You Do?’ Young Practitioners Panel,” co-authored by Alicia Yeo, Cheyenne Kleinberg (White & Case) and Su Rao (White & Case), highlights the young practitioner’s panel that took place on November 13th. Read the full article here.

“New York Arbitration Week 2023 Recap – Obtaining Evidence in the United States from Non-parties to an International Arbitration in a Post-1782 World,” co-authored by May Khoury and Surya Gopalan (White & Case), highlights the White & Case LLP hosted event covering the possibility of obtaining evidence from non-parties to an international arbitration following the 2022 U.S. Supreme Court decision in ZF Automotives US Inc. v. Luxshare, Ltd that took place on November 15th.  Read the full article here.

“New York Arbitration Week 2023 Recap – Highlights from the 18th Annual Fordham Conference on International Arbitration and Mediation” authored by David Blackman, highlights Fordham Law School’s first annual full-day Conference on International Arbitration and Mediation (“CIAM”) that took place on November 17th. Read the full article here.

David Blackman, May Khoury and Alicia Yeo served as Secretaries of the 2023 New York Arbitration Week Organizing Committee.

New York Arbitration Week to Take Place November 13th-November 17th

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November 2023—The New York International Arbitration Center (NYIAC) and the New York Branch of the Chartered Institute of Arbitrators (CIArbNY) are pleased to continue their joint leadership for the fifth annual New York Arbitration Week taking place Monday, November 13th through Friday, November 17th in New York City. The theme, “New York, New York: A Celebration of New York Law and Arbitration” aims to highlight the deep and multifaceted connection between international arbitration and New York City by including a variety of topics that focus on New York’s connection not only with the practice of international arbitration but also with numerous global jurisdictions.

The New York Arbitration Week Organizing Committee consists of members from across the globe, reflecting NYAW’s goal of engaging with members of our international arbitration community in all regions. This year, the Committee is chaired by Chaffetz Lindsey’s Gretta Walters and White and Case’s Damien Nyer. In addition, Chaffetz Lindsey members David Blackman, May Khoury and Alicia Yeo are Secretaries to the Organizing Committee.

The Chaffetz Lindsey team is highly involved with several team members speaking and moderating panels throughout the week including:

Monday, November 13th

Venue Host: Chaffetz Lindsey | 1700 Broadway 11th Floor, New York, NY 100191700 Broadway

Chaffetz Lindsey’s Lidia Rezende will participate in the Young Practitioners Panel & Networking Reception. During the event “Tales from the Hearing Room: ‘What Would You Do?’” panelists will share stories from practice about unique and unpredictable moments from the hearing room and then survey the audience to ask the simple question – “What would you do?” – before sharing how the story really ended.

Lidia will join Travis Gonyou (Binder & Schwartz), Ryan Lax (Torys) and Ricardo Reyes (White & Case) for the discussion moderated by Maria Teder (Ellex Legal).

The interactive evening discussion is presented by CIArb’s Young Members Group, AAA-ICDR Young & International, CPR Young Leaders in ADR, and Young Canadian Arbitration Practitioners.

Tuesday, November 14th

Venue Host: NYC Bar Association | 42 W 44th St

Chaffetz Lindsey’s Gretta Walters will moderate the panel “Procedures for Asserting and Evaluating Privilege Claims in International Arbitration.” The panel will explore questions using interactive hypotheticals and based on a report issued in October 2023 by the New York City Bar Association’s International Commercial Disputes Committee.  The panel members, Ulyana Bardyn (Eversheds Sutherland), Joseph E. Neuhaus (Sullivan & Cromwell), Kim J. Landsman (Independent Arbitrator), are the principal drafters of the report.

The event discussing privilege issues in international arbitration and arbitrating cryptocurrency disputes is presented by the NYAW Organizing Committee and the New York Bar Association’s International Commercial Disputes Committee and Arbitration Committee.

Tuesday, November 14th

Venue Host: Sidley Austin |787 7th Ave

Chaffetz Lindsey’s Andy Frischknecht will moderate the panel “Cross Cultural Conversations: Navigating the ‘International’ in Arbitration Advocacy During the Year of the ArbitralWomen Anniversary.” Additional panelists include Lauren Friedman (King & Spalding), Lindsay Gastrell (Independent Arbitrator), Young-Hee Kim (Sidley Austin), Rumbidzai Maweni (Foley Hoag), Rebeca E. Mosquera (Reed Smith) and Joanne Saint Louis (JAMS).

Wednesday, November 15th

Venue Host: White & Case LLP | 1221 Avenue of the Americas

Chaffetz Lindsey’s Yasmine Lahlou will speak on the panel “Obtaining Evidence from Non-parties to an International Arbitration in a Post Section 1782 World.” Using two mock applications to take evidence under Section 7 of the Federal Arbitration Act, the program will explore the possibilities that Section 7 provides to parties to obtain evidence from non-parties in U.S. seated and foreign-seated arbitrations, explore the issues as they might be presented to arbitral tribunals and also to a judge who may be asked to enforce an arbitral subpoena issued under Section 7. A discussion will follow examining the opportunities and challenges when seeking non-party evidence in the United States.

Additional speakers will include Martin Gusy (Bracewell LLP), Dana MacGrath FCIArb (MacGrath Arbitration), Klaus Reichert SC (Brick Court Chambers), Faith Hochberg FCIArb (Hochberg ADR LLC), Thomas W. Walsh (Freshfields) and Thomas G. Allen (Kilpatrick Townsend). Kiera Gans (DLA) and Sven Volkmer FCIArb (White & Case) will moderate.

Program hosts for the event are the NYAW Organizing Committee, NYIAC and CiarbNY.

Thursday, November 16th

Venue Host: International Centre for Dispute Resolution American Arbitration Association |150 E 42nd St 17th Floor

Chaffetz Lindsey’s Aníbal Sabater will speak on the panel “Public Construction Contracts and Construction Arbitration.” This session will introduce attendees to the field of public construction contracts and will address issues such as: (i) how public construction contracts differ from private construction agreements depending on the jurisdiction including those seated in New York; (ii) the role arbitration places in connection with public construction agreements; and (iii) how the involvement of government entities affects the resolution of international construction disputes. This panel will also discuss options available for international infrastructure projects with a special focus on dispute boards and a discussion on the AAA-ICDR’s new Dispute Avoidance and Resolution Board Procedures and “Best Practices” for the DARB Process. The session will conclude with a presentation by Jus Mundi featuring their International Construction Arbitration report.

Additional speakers include Luis M. Martinez (AAA-ICDR/AAA), Michael A. Marra (AAA-ICDR), Preeti Bhagnani (White & Case), Annie Lespérance (Jus Mundi), Lucila Hemmingsen (King & Spalding) and Zachary Torres-Fowler (Troutman Pepper). José A. Casas (Galicia Abogados) will moderate.

The event is presented by the NYAW Organizing Committee and ICDR.

Thursday, November 16th

Program & Venue: The David D. Caron Praelium | Harmonie Club in New York City

The David D. Caron Praelium, co-organised by Three Crowns LLP, Columbia Law School, and King’s College London, is an annual celebration of advocacy, with two leading international advocates deploying their oratorical and advocacy skills in the service of important current legal issues before a distinguished three-member tribunal.

The Praelium will take place in person at the Harmonie Club in New York City, NY, on Thursday, November 16, 2023.

Leading international advocates Caline Mouawad and Elliot Friedman will appear before the esteemed tribunal comprising Carolyn Lamm, The Honorable Charles N. Brower, and Professor George A. Bermann.

Friday, November 17th

Program & Venue Host: Program & Venue Host: Fordham Law School | 150 West 62nd Street

Chaffetz Lindsey’s Gretta Walters will speak on the panel “Efficient, Effective and Expeditious Resolution of Technology Disputes.” The panel will consider the current efforts to address the needs of technology disputes, including AI.  In response to this need, the ICDR created a Global Working Group which undertook a global survey of more than 500 participants to study how arbitration and other forms of dispute resolution can best assist parties in resolving such disputes.  The Working Group will publish a consultation draft of its White Paper addressing its findings immediately before the conference.  The panel will be joined by those involved in the efforts by UNCITRAL and SVAMC to address technology disputes to share their perspectives.

Additional speakers include Shai Sharvit (Gornitzky), Patricia Shaughnessy (Stockholm University) and Steve Smith (Steve Smith ADR LLC). Kathleen Paisley (Ambos Law) and Maria Chedid (Arnold & Porter) will moderate.

For more information including the full program of events and registration, click here.

Anibal Sabater and May Khoury Co-Author “Economic Sanctions and Arbitration: A Practical Guide for Parties, Counsel and Arbitrators”

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November 2023—Chaffetz Lindsey’s Anibal Sabater and May Khoury contributed to “Economic Sanctions and Arbitration: A Practical Guide for Parties, Counsel and Arbitrators” recently released by the International Association of Lawyers (UIA).

The guide walks arbitration users through the do’s and don’ts when economic sanctions affect an international arbitration and includes chapters providing an overview on the impact of sanctions on arbitral proceedings, parties, counsel, arbitrators, institutions, third parties, and enforcement proceedings.

Additional authors include Elena Gillis, Marc Henry, Vladimir Khvalei, Silvestre Tandeau de Marsac, Delphine Wietek and Jane Willems.  The editors of the guide are Andrea Carlevaris and Veit Öhlberger.

Read the full publication here.

Three Chaffetz Lindsey Members Among Arbitration Lawyers to Launch New Association Focused on the Arab World

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November 2022— Chaffetz Lindsey senior associate May Khoury is among five international arbitration practitioners that are joining forces to launch “ArabArb”, an independent network that aims to unite, promote, and serve the U.S.-based arbitration community with roots, affinity, or interest in the Arab World. Founders of the organization include Randa Adra, partner at Crowell & Moring; Cherine Foty, senior associate at Covington & Burling in Washington, DC; Lillian Khoury, senior associate at Steptoe & Johnson in New York; and Nour Nicolas, associate at Foley Hoag in New York.

Chaffetz Lindsey partners Caline Mouawad and Yasmine Lahlou will sit on the advisory committee of this women-led group, making three out of eleven members represented by the Chaffetz Lindsey team.

Additional advisory committee members include Meriam Al-Rashid, global co-chair of International Arbitration at Eversheds Sutherland; Amal Bouchenaki, partner at Herbert Smith Freehills; Maria Chedid, global co-chair of the International Arbitration Group at Arnold & Porter; and Samaa Haridi, partner at King & Spalding.

ArabArb’s mission is to create a platform for members to connect and collaborate with fellow practitioners as well as advance the knowledge and understanding of international arbitration as it relates to the Arab World. The group will work to increase the visibility of diverse and qualified counsel, arbitrators, and experts who are particularly suited to handle disputes relating to the Arab World.

ArabArb will host a launch event in New York City on November 16, 2022 during New York Arbitration Week to introduce itself to the legal community, present its mission, and welcome new members. The group plans to organize conferences and training seminars on topics relevant to the community, as well as offer mentoring opportunities and exposure to law students of Arab descent. Register for the event here.

Learn more about the organization here.

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