Mr. Nelson represents clients before, among others, the American Arbitration Association/International Centre for Dispute Resolution (ICDR), the International Chamber of Commerce (ICC), Singapore International Arbitration Centre (SIAC), Hong Kong International Arbitration Centre (HKIAC), London Court of International Arbitration (LCIA), the International Centre for Settlement of Investment Disputes (ICSID) and tribunals constituted under the Arbitration Rules of the United Nations Commission of International Trade Law (UNCITRAL), and the federal and state courts of the United States.

Mr. Nelson’s international litigation and arbitration experience includes disputes involving contracts, international trusts, partnerships (limited and general) and corporate law, as well as cases falling under the 1980 Vienna Convention on Contracts for the International Sale of Goods (CISG). Mr. Nelson has been involved in litigation arising under the U.S. Federal Arbitration Act (FAA), the Foreign Sovereign Immunities Act (FSIA), the Alien Tort Claims Act (ATCA), the Helms-Burton Act of 1996, Section 1782 (the cross-border discovery statute), the 1958 New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards and the 1965 Hague Convention on Service of Process. Additionally, Mr. Nelson regularly advises sovereign and corporate clients on public international law issues, including under multilateral treaties, such as NAFTA; the Energy Charter Treaty (ECT) bilateral investment treaties (BITS); and other international trade/investment agreements. He is co-editor of Take the Witness: Cross-Examination in International Arbitration (2d ed. 2018) and the Journal of Enforcement of Arbitration Awards.

Before joining the firm in 2000, Mr. Nelson practiced as a commercial litigation attorney at major law firms in England and Australia. He has been recognized as a leading lawyer in Chambers Global, Chambers USA, Chambers Latin America, The Best Lawyers in America and Lexology Index (formerly Who’s Who Legal - Arbitration). Mr. Nelson also has been repeatedly named a Litigation Star and National Practice Area Star by Benchmark Litigation, as well as to Lawdragon’s 500 Leading Global Litigators list. Additionally, he was named a 2024 Law360 MVP in the International Arbitration category. Mr. Nelson also has been chosen as a winner of the ILO Client Choice Awards in the New York arbitration category and the Burton Award for legal writing, and has been published several times in leading publications, including a leading treatise on serving foreign defendants from countries that are not party to the Hague Convention, “Overseas in Non-Hague,” in the New York Law Journal.

Mallory Silberman is one of the co-chairs of ROAP Americas and the founder of MS ARBITRATION, which focuses on providing bespoke training, hearing-prep help, and a range of other tools and services to practitioners. Before launching her own company, she was an equity partner in the international arbitration group of Arnold & Porter.

While in private practice, Mallory represented investors and a total of 17 sovereign States in nearly 50 treaty cases — leading her to be recognized in Who’s Who Legal as being “among the world’s most experienced young practitioners of investment arbitration.”

In addition to having a decade of first-chair experience, Mallory is praised by her peers as “one of the best advocates I have seen,” and is considered to be “brilliant at cross-examination.” Lexology Index. 

Since 2012, Mallory has served as an Adjunct Professor of Law at Georgetown University Law Center, where she teaches a popular course on Advocacy in International Arbitration. She is a member ROAP’s Global Steering Committee, a Fellow of the Chartered Institute of Arbitrators, and has been recognized for her work by numerous publications, including Chambers, Global Arbitration Review, and The Legal 500.

In addition, Mallory is a member of the ROAP Steering Committee.

Cecilia co-leads the Arbitral Litigation area. Her practice focuses on conducting arbitration proceedings from the perspective of a party’s attorney. She also serves as an arbitrator, mediator and expert in Mexican law for national and international commercial disputes. 

She joined Galicia as a partner, focusing her practice on complex domestic and international commercial disputes. She has developed extensive experience, particularly in cases related to energy, infrastructure and shareholder conflicts. Among her clients are national and foreign companies that have entered into agreements related to energy or construction and infrastructure matters. Her recent cases involve complex disputes arising from PPA and public/private work agreements.

Cecilia is recognized for her expertise and record of accomplishment in complex, arbitration-related judicial proceedings before Mexican courts, such as enforcement of awards and interim measures, among others. In close collaboration with other practice areas of the Firm, she advises clients in Investor State Dispute Settlement (ISDS) matters, specifically by analyzing investment protection provisions in Investment Treaties to which Mexico is party.

Currently, Cecilia is on Mexico’s list of conciliators in ICSID proceedings and is Vice-Chair of the World Arbitration & ADR Commission of the ICC. In 2023, she was appointed as Co-chair of the ICC Advanced Arbitration Academy for Latin America, whose purpose was to train and guide 40 selected candidates as arbitrators with a particular focus on ICC Arbitration Rules. In addition, she is a member of the Steering Committee of the Latin America Working Group created by the IBA Arbitration Committee. Previously, she served as President of the Mexican Institute of Mediation (IMM) and of the Mexican Arbitration Institute (IMA), Secretary General and Counsel of the Mexican Arbitration Center (CAM), Vice-president of Mexico’s ICC Arbitration Commission and a consultant for Mexico’s Mediation Project sponsored by the American Bar Association and USAID.

Cecilia is recognized as an expert and leading lawyer by renowned international publications, such as Chambers Latin American Guide and Chambers Global Guide, in the practice of Dispute Resolution: Arbitration. Since 2021, she is part of the Most in Demand Arbitrators list of said guide, being the first Mexican woman to join it. She is also considered a leader in her practice by The Legal 500 Latin American Guide. Leaders League and Latin Lawyer recognize her as a leader in the national and international legal market because of her experience and recognition by her clients.

Laura Hardin is a Managing Director at Berkeley Research Group, based in Houston Texas. She is a globally recognized international arbitration expert witness has over thirty years of experience, having been appointed in numerous investment treaty and commercial arbitrations. Ms. Hardin is one of the most highly regarded experts and thought leaders in the Global Arbitration Review’s “Who’s Who” of International Arbitration Expert Witnesses and she also regularly appears on Who’s Who Legal’s List of Energy Experts.
Ms. Hardin has provided business valuation, damages quantification and forensic accounting services on international arbitration cases brought before ICC, ICDR, LCIA, SCC, ICSID, SIAC, PCA and ad hoc tribunals. She has worked on engagements involving the oil & gas, power generation, metals and mining, financial institutions, real estate and telecommunications industries. Ms. Hardin has worked for both Claimants and Respondents, and for investors as well as states or state-owned entities. Ms. Hardin has is fluent in Russian and has worked extensively on engagements involving entities or assets in Ukraine, Russia, Belarus, Kazakhstan, Uzbekistan, Moldova, Azerbaijan, Armenia, Turkmenistan, Kyrgyzstan, and Georgia. Ms. Hardin has also worked extensively on engagements involving Europe, South America including Venezuela, Peru, Brazil, and Ecuador, in North Africa, and in Asia.
Ms. Hardin has developed and taught classes on damage theory, valuation, expert discovery, expert report writing, and various international arbitration-related topics. This includes teaching a course on oil and gas valuation hosted by the University of Dundee’s Centre for Energy, Mining and Petroleum Law and Policy, and the development of the annual foundation course for all incoming Dispute Analysis Group senior consultants at PricewaterhouseCoopers

James Hosking is a founding partner of New York-based international dispute resolution boutique Chaffetz Lindsey where he leads the firm’s international arbitration practice.

In his 30-year career, James has been involved in more than 150 arbitrations as counsel, including proceedings under the ICC, AAA/ICDR, LCIA, ICSID, SIAC, HKIAC, CRCICA, WIPO, SCC and UNCITRAL Rules. His current cases involve disputes concerning construction/infrastructure projects, corporate acquisitions, energy/oil & gas projects, pharmaceuticals, licensing and distribution agreements, mining ventures and investment treaties. James’s public international law practice has encompassed investor-state disputes, state-to-state arbitrations, advice on boundary issues and resource allocation, as well as work for multilateral organizations.

James also regularly sits as an arbitrator, having been appointed to around 60 tribunals, with experience as a sole arbitrator, presiding arbitrator, co-arbitrator and emergency arbitrator. Those disputes, seated around the world, have involved some 22 jurisdictions.

James regularly writes and speaks on international arbitration. He is co-editor of the ICCA Report on comparative law issues arising from remote hearings (2021), co-author of the leading treatise Gusy & Hosking, A Guide to the ICDR International Arbitration Rules (OUP, 2d. ed., 2019), and recently authored “Assessing the Probative Value of Evidence” in Ferrari and Rosenfeld (eds), Handbook of Evidence in International Commercial Arbitration: Key Issues and Concepts (Kluwer, 2022). James has been an adjunct professor at schools in the US, Mexico, Italy and New Zealand.

James holds leadership positions in the international arbitration Bar, including on the Governing Board of the International Council for Commercial Arbitration (ICCA) and as Vice-President of the Court of the Saudi Centre for Commercial Arbitration. In addition, he is a Fellow of the Arbitrators’ and Mediators’ Institute of New Zealand, was Co-Chair of the ICC Task Force on Emergency Arbitration Proceedings, and is a member of the ICDR Advisory Board.

James’s expertise is recognized annually in Who’s Who of International Commercial Arbitration, Chambers Global, Chambers USA, Chambers Latin America, Legal 500 Latin America, and PLC Which Lawyer. Since 2019, he has been selected as a “Global Elite Thought Leader” by Who’s Who, one of only a handful of practitioners to hold the distinction.

James earned an LL.M. from Harvard Law School and B.A./LL.B (Hons.) from the University of Auckland. He is admitted in New York and in his native New Zealand.

Neal Mizrahi is an expert in business valuation and the quantification of economic damages in complex disputes. He has practiced in these areas for 17 years and has prepared numerous reports relied upon by courts and tribunals globally. He has extensive testifying experience and has been ranked as a top expert in Canada and globally by Who’s Who Legal since 2014.

He holds the Chartered Professional Accountant (Chartered Accountant) and Chartered Business Valuator designations.

Mr. Mizrahi has provided services to clients in North America, South America, Europe, Asia and Africa. He has testified in international arbitration proceedings in the Permanent Court of Arbitration and the International Chamber of Commerce, as well as the Federal Court of Canada, the Ontario Superior Court of Justice, and the Court of Queen’s Bench of Alberta.

Mr. Mizrahi has led and acted as expert in engagements in resource and extractive industries (i.e. oil and gas, mining and minerals), construction, manufacturing, services, and software, and other sectors. He has worked on matters involving expropriation, breach of contract, and has significant experience with post-acquisition disputes.

Mr. Mizrahi has significant experience in the context of mergers and acquisitions. He has acted as a valuator in the context of transactions. For instance, he recently provided a fairness opinion for a transaction involving a large publicly listed oil and gas company. He has been involved in due diligence, including as an advisor to parties and underwriters of Representation and Warranties insurance. He has also been retained by the Competition Bureau of Canada to provide analyses on post‐acquisition efficiencies resulting from proposed mergers.

He has served as an adjunct faculty member at the Schulich School of Business at York University and the Rotman School of Management, where he taught courses in accounting, valuation at the undergraduate and graduate levels for nearly a decade.

Mr. Mizrahi is consistently ranked in the Global Arbitration Review’s The International Who’s Who of Arbitration, which lists the most highly regarded experts globally, in each year from 2014 to 2022 and as a “Thought Leader.” Separately, in Canada, among the list of 14, he was one of two “Most Highly Regarded” experts in 2020 and 2021.

In addition, he was listed as a top Construction Expert Witness in Canada.

Prior to joining EY, Mr. Mizrahi led the Canadian valuation and damage quantification practice of a large consulting firm.

Danielle Morris is a partner in WilmerHale’s Washington DC office with 15 years of experience advising clients on all aspects of international arbitration. Her practice spans both private and public international law, with a focus on investor-State arbitration. She has worked on a range of commercial and investment arbitrations, both institutional and ad hoc, from the pre-dispute and notice of dispute stage through merits submissions and hearings through to set-aside and enforcement. She also assists clients with investment planning and advises on how to avoid or amicably resolve disputes outside the arbitration process.

Danielle has taught both international commercial arbitration and investment arbitration at the University of Pennsylvania Law School. She has also lectured at Cambridge University, Duke University School of Law, Georgetown University Law Center, American University’s Washington College of Law, and University of Michigan Law School. She speaks and publishes regularly on issues relevant to investment arbitration and investment planning.

Gisela Paris is a partner in the firm's International Arbitration and Litigation Practice. Her practice focuses primarily on matters related to the representation of sovereign states in foreign investment disputes.

She has been recognized as a “Future Leader” by Who's Who Legal, Top 25 Rising Legal Stars by Latinvex, and by Legal 500 - Latin America - International Firms in International Arbitration, in its 2021 publication, which recognized Gisela for having “played a key role in the growth of the practice's Latin American footprint.” With 16 years of experience in the United States, her professional practice focuses primarily on issues related to the representation of sovereign states in foreign investment disputes.

She has represented clients in arbitrations before the International Chamber of Commerce (ICC), the International Centre for Settlement of Investment Disputes (ICSID), and the United Nations Commission on International Trade Law (UNCITRAL), initiated under Bilateral Investment Treaties and the Dominican Republic-Central America-United States Free Trade Agreement (CAFTA) before the International Centre for Settlement of Investment Disputes (ICSID) and in commercial arbitrations. involving various industries, including hydrocarbons, mining, telecommunications, food, road infrastructure, and sugar production, among others.

Gisela has experience in both public and private sectors.  She previously worked as an attorney at leading international law firms in New York and Buenos Aires, Argentina and as legal advisor to the Secretariat of Industry, Commerce and Small and Medium Enterprises of the Argentine Ministry of Economy.

Vasuda Sinha is a partner in McCarthy Tétrault’s National Litigation and Dispute Resolution Group. Her practice is focused on complex commercial and investment arbitrations and litigation, as well as cross-border and jurisdictional disputes. With extensive experience in international commercial arbitration and investor-state arbitration, Vasuda’s global experience helps turn clients’ cross-jurisdictional challenges into opportunities.

Vasuda’s extensive experience and appearances as counsel before various international arbitral tribunals and courts, including SCC, ICC, UNCITRAL and ICSID tribunals and the Supreme Court of Canada, is particularly sought-after by clients with global operations and investments during periods of geopolitical and market volatility. She has represented clients on a broad variety of matters including those related to insolvency and investment treaty violations involving a variety of industries and jurisdictions.

Prior to joining McCarthy Tétrault, Vasuda practiced for nearly a decade with a leading international law firm in Paris, France and spent a year in various chambers in London as a Fox Scholar. She also previously practised for five years with an international firm in its Toronto office, giving her a unique sense of the opportunities and challenges encountered by clients in Canada and abroad.

Active within the legal industry, Vasuda is a frequent presenter and author on timely legal topics such as damages in investment arbitration, human rights, and disputes in emerging technologies. She is also a strong supporter of diversity in the profession and has been a formal and informal mentor to young lawyers at the start of their career.

Vasuda is a member of the International Chamber of Commerce (Canada) and Young Canadian Arbitration Practitioners, and is called to the bars in Ontario and Paris, France. She speaks English, Hindi and French.