An international arbitration boutique with offices in London and Buenos Aires.
We represent corporations, individuals and States in a broad range of commercial and investor-state disputes involving a wide variety of industries worldwide.
We were founded in 2017 by Jean Paul Dechamps who spent eleven years in the International Arbitration group of Freshfields Bruckhaus Deringer. Working in London, Paris and Washington, D.C., Jean Paul was a key part of a team that represented parties in many of the most prominent international disputes of the last decade, helping shape the law and practice of international arbitration.
Dechamps is distinguished from other international firms in the market by the ‘quality and the experience of its team, presented in a cost-efficient boutique format.’
GAR 100 - 13th edition (2020)
From associates to partners, ‘they are very hard-working and very focused on providing a service of high quality.’
GAR 100 - 13th edition (2020)
Why Dechamps International Law?
We are dedicated to international arbitration, offering a unique combination of quality, experience and cost-efficiency.
Top quality legal advice and depth of experience. We operate with the standards of the traditional international law firms but without the associated cost. We work with our clients to develop the best strategies for their commercial and investments disputes by applying our deep industry knowledge and our experience of complex substantive and procedural legal issues.
A track record in the leading arbitral fora and before some of the world’s most distinguished arbitrators. Our multilingual team has a history of success in arbitrations under the auspices of the International Centre for the Settlement of Investment Disputes (ICSID), the arbitration rules of the United Nations Commission on International Trade Law (UNCITRAL), the London Court of International Arbitration (LCIA), the Stockholm Chamber of Commerce (SCC), and the International Court of Arbitration of the International Chamber of Commerce (ICC).
A value driven proposition. We operate an efficient model which saves our clients money. With few of the conflict issues that restrict larger firms and with the flexibility that allows us to agree bespoke fee structures, we represent a value-driven alternative with no compromise on quality.
Relationships that create value for our clients. Where appropriate, we work in partnership with other lawyers, leading academics and experts across jurisdictions, leveraging our extensive network of contacts to build the optimal team for each dispute. We have established relationships with the leading litigation funders and insurers which allow us to access a range of funding options for our clients.
The new boutique has already excelled for investors in Latin American treaty cases.
GAR 100 - 13th edition (2020)
Leaders League (2020)
We have broad experience practicing in the world’s major arbitration forums and before some of the world’s most distinguished arbitrators.
Our team has a stellar record in international arbitrations, having acted for corporations, private clients, states and state companies in over fifty international arbitrations, including some of the most high-profile and high-value disputes to date.
We undertake disputes of any size and complexity, offering our clients a comprehensive range of services in the field of international dispute resolution, including:
• International and domestic commercial arbitration
• Investment treaty arbitration
• Coordination of multi-jurisdictional litigation
• Mediation and other forms of alternative dispute resolution.
A selection of our team’s recent and ongoing experience includes:Investment Treaty Arbitration Commercial Arbitration
We offer the knowledge and experience found at the large international firms but without the associated cost.
Jean-Paul Dechamps impresses peers with his 'unsurpassed knowledge and experience of handling expropriation cases as well as his fantastic energy and attention to detail'
Who is Who Legal 2018
Jean-Paul Dechamps is [...] a ‘future leader’ in international arbitration
Who is Who Legal (2016-2019)
Jean Paul heads our London office and has over 15 years’ experience representing private investors and state agencies in investment and commercial disputes all over the world.
Educated in the civil law and common law systems, Jean Paul has been involved as arbitrator and counsel in over 40 international arbitrations under the rules of the ICC, ICSID, UNCITRAL and the London Court of International Arbitration, with a particular focus in the mining, electricity and hydrocarbon sectors.
He started his career in Buenos Aires in 2002. Between 2005 and 2006 he worked in the litigation department of Gibson Dunn & Crutcher, in London. In 2007 he joined the international arbitration group of Freshfields Bruckhaus Deringer, where he worked in the Paris, Washington D.C. and London offices and was made counsel in 2016. He left Freshfields in November 2017 to set up his own international arbitration boutique Dechamps International Law.
Jean Paul has a law degree from the Universidad Católica Argentina, where he also completed postgraduate studies in business economic law. He holds masters’ degrees (LL.Ms) on International and Commercial Arbitration from the University of Westminster and on International Business and Economic Law from Georgetown University.
Jean Paul maintains an active academic activity in the field of international arbitration. He currently teaches, together with Constantine Partasides (Three Crowns LLP) and Georges Chalfoun (3 Verulam Buildings), the Seminar on International Arbitration to the students of the Master of Law at the London School of Economics. He is also a visiting professor at the Universidad Austral (Buenos Aires) where he teaches a Practical Seminar on International Arbitration. Jean-Paul is also running the Workshop on Examination of Witnesses for the Degree in Law & Bachelor in Global Governance students at ESADE University in Barcelona. He is a member of the Editorial Committee of the Latin American Journal of International Commercial Law, edited by the Faculty of Law of the Universidad Nacional Autónoma de México (UNAM).
Jean Paul is a member of the Buenos Aires and New York bars. He speaks fluently English, Spanish, and Portuguese.
Jean Paul Dechamps [has] extensive experience in investment disputes in Latin America and other emerging markets, involving the oil and gas, electricity, shipping, mining, and food distribution sectors.
The Legal 500 (2017)
Jean-Paul Dechamps has significant expertise in investment and commercial disputes in Latin America and other emerging markets, all of which have been key arbitral battlegrounds, especially Argentina and Venezuela.
Commercial Dispute Resolution (2016)
Gustavo heads our Buenos Aires office, and has broad experience in institutional and ad hoc international arbitrations, with a particular focus in the mining, energy and infrastructure sectors.
He worked in the Energy and Arbitration department of Pérez Alati, Grondona, Benites, Arntsen & Martínez de Hoz (Jr.) in Buenos Aires between 2004 and 2011. In 2012 he joined the international arbitration group of Freshfields Bruckhaus Deringer in Washington D.C., where he was promoted to senior associate in 2015. After seven years, Gustavo left Freshfields in early 2019 to join the Buenos Aires office of Dechamps International Law as partner.
Gustavo holds a law degree from the Universidad Católica Argentina, with honors, and a master’s degree (LL.M) on Environmental Law from New York University, where he was research assistant to Prof. José Álvarez on investment arbitration matters. He is a frequent speaker on arbitration topics and has published several articles on energy and arbitration, including two award-winning monographic studies focused on commercial arbitration issues.
Gustavo is a member of the Buenos Aires bar and is licensed to practice as a Special Legal Consultant in Washington D.C. He speaks fluently English and Spanish.
Juan Pablo is an associate in our Buenos Aires office. He has experience in investment and commercial arbitrations in Latin America.
He graduated from the Universidad de Buenos Aires (UBA), where he currently teaches Public International Law and coaches its team in the Willem C. Vis International Commercial Arbitration Moot.
In 2020 Juan Pablo was selected by UBA to participate in the NYU Law Abroad Program on a full scholarship. Also in 2020, was selected by the Geneva Center for International Dispute Settlement to participate in the first edition of the Latin American International Arbitration Course.
Juan Pablo is fluent in English and Spanish.
Brian is an associate in our Buenos Aires office. He has experience in investment and commercial arbitrations in Latin America and Europe.
He graduated from Universidad Austral, where he participated in a variety of international arbitration moot competitions. Between 2014 and 2018, he worked in the energy and international arbitration department of two major Argentine law firms. In 2019, Brian completed a master’s degree (LL.M.) at Queen Mary University of London, graduating with a distinction.
Brian is a member of the Arbitration Department of Universidad Austral, where he participates in the organization of courses and seminars on international arbitration. Brian is a founding member of Argentina Young Arbitration Practitioners (AYAP).
He has published several articles on energy law and international arbitration.
Brian speaks Spanish and English.
Manuela is an associate in our Buenos Aires office. She has experience in investment and commercial arbitrations in Latin America.
She studied at the Universidad de Buenos Aires (UBA), where she was distinguished as Outstanding Student. She currently coaches the UBA team in the Willem C. Vis International Commercial Arbitration Moot.
In 2019, Manuela was granted a full scholarship by UBA to complete a semester at the LL.M. Program at New York University (NYU), where she participated in the Foreign Direct Investment International Arbitration Moot and was a board member of NYU’s International Arbitration Association.
Between 2016 and 2018, Manuela worked in the corporate department of a full-service Argentine law firm. She speaks English and Spanish fluently.
Juan Ignacio Gonzalez Mayer
Juan Ignacio is an associate in our Buenos Aires office with experience representing clients in commercial and investment disputes in Latin America.
Juan Ignacio graduated from the Universidad de Buenos Aires (UBA), where he was distinguished three times as an Outstanding Student. He has represented clients in commercial and investment arbitrations under the UNCITRAL, ICSID, ICSID (AF) and ICC rules. Between 2016 and 2018, Juan Ignacio worked in the litigation and international arbitration department in the Buenos Aires office of a global law firm. He first joined Dechamps International Law in 2018, before moving to New York to study for six months on a full scholarship at New York University (NYU). At NYU he served as Co-Chair of the International Arbitration Association. He rejoined the firm in early 2019, after interning in the international arbitration group of Freshfields Bruckhaus Deringer in New York.
Juan Ignacio was part of the UBA team that won the XXIII Willem C. Vis International Commercial Arbitration Moot in 2016 and he received an honorable mention for his advocacy skills in 2017. He currently teaches International Commercial Arbitration and International Sales of Goods at UBA and coaches the UBA teams in the Vis Moot and the Foreign Direct Investment International Arbitration Moot.
Juan Ignacio speaks fluently English and Spanish.
Pablo specializes in international arbitration and has extensive experience in commercial and investment treaty disputes, with a particular emphasis in the construction, energy and natural resources sectors.
He graduated from the Universidad de Buenos Aires (UBA), where he also undertook postgraduate studies in tax law in 2013. He obtained a master's degree (LL.M) in international dispute resolution at the University of Geneva and the Institute of Higher International Studies and Development in Geneva, Switzerland. He has represented clients in arbitrations under the rules of the ICC, ICSID, ICSID(AF) and UNCITRAL.
In the academic field, he is a professor of Investment Arbitration at the Universidad de Buenos Aires where he coaches its students in several international arbitration moot competitions. Pablo is also the author of several publications on international arbitration and frequent participant in conferences on arbitration. He was part of the three-member team that won in 2014 the first edition of the Young Arbitrators Match (YAM) on how to draft an arbitral award. He is a founding member of Argentina Young Arbitration Practitioners (AYAP).
Pablo is a member of the Buenos Aires bar. He speaks Spanish, English and Italian.
Sofia is an associate in our Buenos Aires office.
She graduated from the Universidad Austral in 2020, having won the gold medal for outstanding academic performance. She received the Distinction for Academic Excellence from the Bar Association of the City of Buenos Aires. In 2019, she worked at a leading Argentine law firm.
Sofia was chosen to participate in the international programme Law Without Walls in 2019. She was also awarded a scholarship by the Santander Bank to complete her undergraduate studies in the Universidad CEU San Pablo in Madrid.
She is fluent in Spanish and English.
Eugenia is an associate in our Buenos Aires office. She has experience in commercial arbitrations in Latin America.
Eugenia is a lawyer from the Universidad de Buenos Aires (UBA), where she was distinguished as an Outstanding Student. Between 2019 and 2020, Eugenia worked as an associate in the dispute resolution and international arbitration department in the Buenos Aires office of a global law firm, where she has represented clients in commercial arbitrations under the ICC rules. She previously worked as an inhouse counsel in a multinational insurance company.
Eugenia teaches International Commercial Arbitration and International Sales of Goods at UBA. She also coaches the UBA teams participating in the Willem C. Vis International Commercial Arbitration Moot.
In 2020 Eugenia participated in the first edition of the Latin American International Arbitration Course (LAIAC) jointly launched by UBA and University of Geneva and the Institute of Higher International Studies and Development in Geneva, Switzerland.
Eugenia is a member of the Buenos Aires bar. She speaks fluently English and Spanish.
Horacio is an associate in our Buenos Aires office specializing in commercial and investment arbitrations in Latin America.
He completed his law studies at the Universidad de Buenos Aires (UBA), where he was a member of the teams participating in the Foreign Direct Investment International Arbitration Moot and the Philip C. Jessup International Law Moot Court Competition. He currently collaborates with UBA in the preparation and training of both teams.
In 2018, as part of his law studies, Horacio was granted a full scholarship by UBA to study during a semester at the LL.M. Program in American Law of Boston University (United States).
Horacio worked in the corporate department of a full-service Argentine law firm and as an intern at the International Relations Directorate of UBA School of Law. He joined Dechamps International Law in early 2019. Horacio speaks Spanish, English, Italian and French.
Marcos is an associate in our Buenos Aires office. He has experience in investment and commercial arbitrations in Latin America.
He graduated as a lawyer from the Universidad de Buenos Aires (UBA), where he was distinguished as Outstanding Student. Between 2018 and 2019, he worked as an associate in the dispute resolution and international arbitration department in the Buenos Aires office of a global law firm. He previously worked in the dispute resolution department of a leading Argentine law firm.
Marcos teaches an international arbitration course at UBA and coaches its team in the Willem C. Vis International Commercial Arbitration Moot.
He has published several articles on procedural law and international arbitration matters.
Marcos speaks English and Spanish.
Florencia is an associate in our Buenos Aires office. She has experience in investment and commercial arbitrations in Latin America and Europe.
She graduated from the Universidad de Buenos Aires (UBA), where she was distinguished as Outstanding Student. Between 2016 and 2017, she worked at a leading Argentine law firm. She first joined Dechamps International Law in 2018. During 2019 she worked in the international arbitration group of White & Case in Paris. She rejoined the firm in early 2020.
Florencia was part of the UBA team that won the Concours d’Arbitrage International de Paris in 2018 and she received academic awards from the Buenos Aires City Legislature and its Judicial Council. She currently coaches the UBA team in the competition, including the team that won the 2020 edition.
Florencia speaks Spanish, English and French fluently.
We invite applications from talented junior lawyers, including recent law school and LL.M. graduates, who are interested in undertaking a paid internship with us.
Interns will be involved in a variety of international arbitration work, including carrying out legal research, drafting written submissions and providing support at oral hearings.
If interested, please send your CV, together with a cover letter (maximum 1 page) to firstname.lastname@example.org
23 Mar 2021
Gustavo Topalian speaks at panel organized by the ICC and the CAC
Gustavo Topalian speaks at the panel “Arbitral award: enforcement and remedies” organized by the International Chamber of Commerce (ICC) and the Cámara Argentina de Comercio y Servicios (CAC), together with Santiago Soria (Marval, O’Farrell & Mairal), Hernán Oriolo (Abeledo Gottheil) and Mariana Lozza (Argentina Attorney General’s Office).
6 Oct 2020
Gustavo Topalian speaks at a panel organized by CEDEP
Gustavo speaks at the panel “Como mejorar tus reclamaciones de perjuicios: consejos prácticos sobre el trabajo con expertos en daños”, organized by Centro de Estudios de Derecho Procesal (CEDEP), together with José Manuel García Represa (Dechert), Carla Chavich (Compass Lexecon), Santiago Dellepiane (BRG) and Daniela Corchuelo (Posse Herrera Ruiz).
7 Jan 2021
Gustavo Topalian speaks at IPA conference
Gustavo speaks at the International Conference on Arbitration and Energy organized by the IPA (Instituto Peruano de Arbitraje). Gustavo participated in a panel discussing arbitration clauses and other dispute resolution methods in the energy sector, together with Hugo Alonzo Navarro (Baker McKenzie), Jesús Estrada López (GTA Villamagna) and Renato Grion (Pinheiro Neto).
8 Dec 2020
Who’s Who Legal listed Jean Paul Dechamps, Gustavo Topalian and Pablo Jaroslavsky
Who’s Who Legal has recognized our partner Jean Paul Dechamps as a leading international arbitration practitioner in its 2021 edition. The publication also recognized our partner Gustavo Topalian and our associate Pablo Jaroslavsky as future leaders in international arbitration.
3 Nov 2020
Jean Paul Dechamps delivers a cross-examination workshop at ESADE Law School in Barcelona
Jean Paul Dechamps delivers, together with Annie Pan (Freshfields), a workshop on cross-examination of witnesses at ESADE Law School. The workshop was part of the international arbitration module run by Prof. Patricia Saiz (ICC International Court of Arbitration).
2 Oct 2020
Pablo Jaroslavsky speaks at the opening of the V Sao Paulo FDI Premoot
Pablo Jaroslavsky participated as speaker at the opening event of the V Sao Paulo FDI Premoot, which discussed the main legal issues of the 2020 FDI Moot Case. Pablo addressed the assignment of claims in investment arbitration and shared the panel with Gabriella Bianchini (PGMBM), Elena Cima (University of Geneva) and Daniel Bioza (Clansen & Caribé & Casado Filho).
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Dechamps International Law