Attorneys for Sovereign States in International Investment Arbitration
GDI attorneys have acted in several international arbitration proceedings under ICSID, UNCITRAL, ICC and ad hoc arbitrations. They have also led numerous proceedings for the annulment and enforcement of awards. More than 70 international investment arbitrations taken by members of GDI’s team for the defense of States confirm that GDI is the firm with widest experience in the industry.
GDI team is not only engaged with the defense of States in international investment arbitration, but also with the prevention of origination of disputes. To that effect, the first “Program for Professional Training of Government Attorneys in International Investment Arbitration” has been developed and is implemented jointly with different government offices.
GDI provides advice and legal representation services in trade arbitration to individuals, legal entities and federal and provincial States in trade arbitration, in a wide range of business industries.
Public and Private International Law Disputes
GDI provides advice and legal representation services in disputes under human rights international treaties, international humanitarian law, sea international law and other international law treaties.
Advice on Laws and Contracts
GDI actively advices States in the drafting, negotiation and renegotiation of international treaties, and domestic laws on foreign investment, arbitration and prevention of international disputes. GDI also offers advice and counselling to legal entities and individuals in the drafting and negotiation of international contracts.
As Attorney for the Argentine Government, Osvaldo Guglielmino led the defense of the Argentine Government in more than 50 international investment arbitration cases. During his office, Argentina could reduce the cases brought against the State in an aggregate amount of USD 43,000 million.
Since its creation, GDI has participated in tenths of international investment arbitrations and trade arbitrations, and in other complex international litigations and negotiations of different industries, helping its clients to achieve favorable settlements or judgements for amounts higher than USD 2,000 million, including recovery of costs.
Osvaldo César Guglielmino was a Federal Judge in the Argentine Republic for thirteen years with competence in contentious-administrative matters. He is one of the most renowned administrative lawyers in the country and in Latin America.
His academic prestige in the field of public law and his efficiency as a member of the judiciary led Osvaldo to be appointed as Procurador del Tesoro de la Nación of the Argentine Republic in 2004. In that position, he led State lawyers and headed the legal representation of Argentina before international institutions.
His tenure as General Attorney coincided with the outbreak of claims brought by foreign investors against Argentina. The Argentine Republic was, at that time, the respondent in 50% of all claims brought under the ICSID Convention worldwide. Under his leadership, Argentina decided to exercise its defense through the corps of State lawyers. Argentine Procuración del Tesoro de la Nación became, de facto, the most active law firm in the world in this type of arbitration.
Osvaldo led the Argentine defense in more than 50 investment arbitrations governed by different rules (ICSID, UNCITRAL, ICC, Ad-hoc). During his tenure, investment arbitration claims against Argentina were reduced by between USD 33 billion and 43 billion (depending on the applicable interest rate).
Osvaldo presided over the Unidad de Asistencia para la Defensa Arbitral (UN.A.D.AR), a body comprising of representatives of the Ministry of Economy and Production, the Ministry of Foreign Affairs, International Trade and Worship and the Ministry of Federal Planning, Public Investment and Services, envisioned to prepare strategies and guidelines for arbitrations under Bilateral Investment Treaties. He advised the Argentine State on international arbitration matters discussed at the United Nations Commission on International Trade Law (UNCITRAL) and UNASUR. At the same time, he advised and represented Argentina before the Organization for Economic Cooperation and Development (OECD) in matters related to international arbitration. By virtue of his vast experience in the field of international investment law, he was involved in the analysis and discussion of several Bilateral Investment Treaties, many of which are currently in force for the Argentine Republic. In 2013 he was entrusted with the position of Commissioner in the Comisión para la Auditoría Integral Ciudadana de los Tratados de Protección Recíproca de Inversiones y del Sistema de Arbitraje Internacional en Materia de Inversiones (CAITISA) of the Republic of Ecuador.
Osvaldo has also acted as arbitrator in international proceedings administered by the Permanent Court of Arbitration in The Hague.
Osvaldo is an undergraduate and postgraduate professor at different national universities, in public law matters, especially administrative, regulatory and arbitration law. He was President and Professor of the Escuela de Abogados del Estado. He has published several articles and given numerous lectures on issues related to public law, public international law, investment law and the defense of States before international tribunals.
Yolanda studied law at the University of Law and Political Scienses of the Santo Tomás de Aquino University (Colombia). She specialized in fiscal control of public income at the Universidad Externado de Colombia. Yolanda has also postgraduate studies in urban management and planning, at the Instituto de Estudios de Administración Local (I.E.A.L), Madrid, Spain.
Yolanda has been a Civil Procedure professor at Law and Political Sciences at Universidad de Santo Tomás de Aquino, in Colombia. As a result of her outstanding academic performance, she obtained the Alcalá Award on Iberoamerican Public Administration, granted by the Instituto Nacional de Administración Pública (I.N.A.P.) in Spain.
She has worked as a lawyer in numerous international investment arbitrations under ICSID, ICSID(AF) and UNCITRAL rules, and in international commercial arbitrations under ICC rules. She has also worked in the preparation of expert reports for international investment arbitration proceedings with Professor Ismael Mata, a prestigious administrative lawyer in Argentina.
Previously, Yolanda worked for the Defensoría del Pueblo de la Nación Argentina, and at Professor Agustin Gordillo´s Law Firm. Yolanda has also professional experience as a finance auditor in the Dirección de Hacienda, Contraloría General de la Nación in the Republic of Colombia, and as a lawyer and legal advisor in administrative law at the Consejo Federal de Invesiones, as principal associate of Dr. Felipe González Arzac.
Yolanda speaks English and Spanish fluently.
He graduated as a lawyer from Universidad Nacional del Litoral (Argentina), with a medal for the best average GPA. He holds a Master of Laws degree from Harvard University.
Guillermo has acted as counsel in more than 30 international investment and commercial arbitrations under ICSID, ICSID(AF), UNCITRAL, ICC and ad hoc rules.
He has been hired by Latin American and Asian States as an expert advisor in foreign investment auditing processes, as well as in the negotiation of international trade and investment protection treaties.
His current practice focuses on international investment arbitration and international commercial arbitration. He has been part of the legal defense team that recently contributed to Latin American States obtaining favorable results in international investment arbitrations for amounts of over USD 2 billion, with costs in favor of the State. He has acted as Special Counsel in other international investment arbitrations, with favorable results for the represented States in amounts of over USD 500 million.
Previously, he worked as an attorney at the State Attorney’s Office of the Province of Santa Fe (Argentina), where he was involved in complex litigation, class actions and regulatory policy.
Guillermo started his teaching activity in 2007. He has taught undergraduate and graduate courses at different universities in Argentina. Currently, he teaches International Investment Law at Universidad Torcuato Di Tella (Argentina). He has coached teams in the international competitions Jessup International Law Moot Court, Frankfurt Investment Arbitration Moot and Foreign Direct Investment Moot.
He has published numerous articles and chapters in books and translated essays and books on the subjects of his expertise. He was Co-Director of the Law Review of the University of Palermo and Editorial Secretary of two other law reviews, as well as anonymous referee for international law publications. He has been a guest lecturer on more than 40 occasions in Argentina and abroad.
Throughout his career he has been awarded several prestigious awards and fellowships. These include the Fulbright Scholarship (2012-2013), the Harvard Summer Academic Fellowship (2013), the National Young Researcher Award (AAFD, 2009), the Supreme Court of Justice Award (Santa Fe, 2008), among others.
He speaks Spanish and English and is proficient in Italian and Portuguese.
Alejandro is a lawyer graduated from the Universidad Nacional de La Plata.
His practice focuses on public international law, especially in international investment arbitration, where he has accumulated vast experience working on dozens of cases under ICSID, UNCITRAL and ICC rules, both in original and annulment proceedings. His practice area covers diverse economic sectors such as banking, financial and capital markets, shipping, and chemicals, among others.
Previously, Alejandro worked as an associate for another international firm based in the United States, also in the area of arbitration and dispute resolution.
Alejandro has collaborated with the United Nations Conference on Trade and Development (UNCTAD) on transnational investment regulatory policy and arbitration. By virtue of the quality of his work he has been awarded the “Joaquín V. González” Prize for academic merit by the Government of La Plata, Argentina.
Alejandro is fluent in Spanish and English.
María de la Colina
She studied law at the National University of Córdoba, Argentina, where she qualified as an attorney. She completed a master and doctorate in international law at the Institute of International and Development Studies in Geneva.
María has worked in more than 35 international disputes, either representing sovereign states or claimants before international tribunals, or assisting international tribunals or arbitrators.
As Counsel, she has represented Latin American, European and Asian States in international investment arbitrations and an Asian State in the World Trade Organization in an anti-dumping and subsidies case. Likewise, she has represented Argentina and other States in proceedings before the United States Department of Commerce in anti-dumping and subsidy cases, and provided advice and representation to the targeted industries in those cases. She has experience in international disputes concerning tax measures, pension system, hydrocarbons, renewable energy, treaty succession, international trade, mining and financial services, among others. She has worked in international arbitrations under the ICC rules, ICSID, UNCITRAL, the Stockholm rules, the Swiss Rules of International Arbitration.
Previously, María worked as an attorney in an international law firm specialized in international investment arbitration with focus on Latin America. Her professional experience also includes legal advice to companies on corporate law issues. She has advised buyers in M&As, as well as corporate and private clients in the planning and implementation of international tax and legal structures.
In 2012, she began her academic career as a tutor in the LLM in International Law at the Institute of International and Development Studies in Geneva. In 2015 she was a lecturer at the Master in International Disputes Settlement (MIDS) in Geneva, where she taught public international law and international investment law. Since 2016 she teaches at the Menton campus of SciencesPo Paris courses in comparative law and theory of law. She is frequently invited as a panelist at conferences on international law and international arbitration in Europe and the United States.
María has received several prestigious awards and scholarships, such as the Francophonie special prize in the Charles Rousseau moot court in French (2005), the Rosalyn Higgins scholarship to attend the Public International Law session at the Hague Academy (2006), the Hans Wilsdorf Fellowship (2012), and the HEID Fellowship (2012). In 2017 she defended her doctoral thesis on the exercise and limits of the discretion of the international judge or arbitrator with summa cum laude.
She speaks Spanish, English, French, Italian, Turkish and has working proficiency in Portuguese.
Camila studied law at the Universidad Torcuato Di Tella (Argentina). As a result of her outstanding academic performance, she obtained the “Academic Excellence Award” granted by the Bar Association of the City of Buenos Aires, and an Excellence Award for being among the most outstanding students in Finance and Accounting.
Camila has also studied a Master’s in business law at the Universidad de San Andrés.
She has worked as a lawyer in numerous international investment arbitrations under ICSID, ICSID(AF) and UNCITRAL rules, and in international commercial arbitrations under ICC rules.
In 2019, Camila participated in The Hague Academy of International Law, where she had the opportunity to study international public and private law with some of the most prestigious teachers in the world. She was also editor of the Latin American Journal of International Law and the Argentine Journal of Legal Theory.
Camila speaks English and Spanish fluently.
Maria Eugenia Borrajo
Maria Eugenia is a lawyer that graduated in the top 1% of her class of the University of Buenos Aires, with a focus in Private Law (2016), with honors diploma and certificate of training in legal research.
In 2015 she was distinguished with the certificate of academic excellence awarded by the Bar Association of the City of Buenos Aires.
She was a fellow of the Exchange Program of the School of Law (UBA) at Boston University School of Law (2015) and a fellow in Institutional Interest Projects at the University of Buenos Aires. She has also taught Private International Law and Integration Law.
María Eugenia has worked as a lawyer in local and international arbitrations in disputes related to multiple economic sectors, under ICSID, ICSID(AF), UNCITRAL, ICC rules, among others. She has also advised national and foreign companies in their interactions with the federal and local government in investment matters. María Eugenia has been an attorney in international commercial transactions, and has carried out analyses regarding the legal and policy implications of bilateral investment treaty clauses, international arbitration agreements and arbitration awards for international companies. María Eugenia has also advised on the design and implementation of legal strategies in local litigation and international commercial and investment arbitration.
In 2021 she was elected to the Executive Committee of AYAP (Argentina Young Arbitration Practitioners), a role she currently holds.
María Eugenia is fluent in Spanish and English.
Miguel Colquicocha Martínez is a lawyer and economist, graduated in both disciplines at the National University of Rosario (Argentina). He conducted postgraduate studies in International Arbitration at the American University (Washington D.C.), in Energy matters at the World Energy Council, and, in International Contracts and Litigation at the Austral University (Argentina).
Miguel is a professor of Commercial Law and Private International Law at the National University of Rosario, where he also participates in Research Projects. Apart from that, he has served as a coach in international commercial and investment arbitration moot courts conducted in English and Spanish. In 2010 he was part of the team that won the International Commercial Arbitration moot organized by the University of Buenos Aires and the University of Rosario (Bogotá), and in 2017 he was the head coach of the team that won the investment arbitration competition organized by the American University (DC) and the Externado University (Bogotá).
He has published various academic articles on commercial and investment arbitration matters, as well as on restructuring of sovereign debt. He has also organized different academic events in Rosario and has been invited to speak in international events in Argentina, Paraguay, Bolivia, Chile and Ecuador about these topics. In 2017, the International Junior Chamber of the Junior Chamber chose him as one of the outstanding young people for his leadership and academic achievements.
Before joining Guglielmino International Law, Miguel served in the investigation and litigation of economic and complex crimes in the national and international scope. He has also experience in securities and capital markets.
Miguel has served as a lawyer in national and international arbitrations in disputes related to multiple economic sectors, under CIADI, CIADI (AF), CNUDMI, CCI rules, etc.
Miguel is fluent in Spanish and English.
Francisco received his law degree from the University of Buenos Aires in 2016, with a specialization in Public Law. In 2021, he graduated from the LL.M. program at Columbia Law School, where he received the highest academic honors.
Francisco has acted as counsel in numerous investment arbitrations under the ICSID, ICSID(AF), and UNCITRAL Rules, in disputes concerning various economic sectors.
During his LL.M at Columbia, Francisco focused on International Investment Law and International Law, where he had the opportunity to stu¬dy with renowned professors, and to learn from distinguished arbitrators and leading practitioners. He was awarded the Human Rights Fellowship (2021) for his studies on the relationship between International Investment Law and Human Rights.
Since 2015, Francisco has been teaching at the Faculty of Law of the University of Buenos Aires as part of the International Law department.
Francisco has completed many courses in the area of International Law, foremost among them the Latin American International Arbitration Course (LAIAC), a joint program of the Geneva Center for International Dispute Settlement (CIDS) and the Faculty of Law of the University of Buenos Aires.
Before joining Guglielmino Derecho Internacional, he served as judicial law clerk and senior law clerk at the Judiciary Branch of the City of Buenos Aires, where he worked in cases in the areas of administrative law, tax law, and class actions. In addition, he was an intern at the Inter-American Commission on Human Rights (IACHR).
During his law career, Francisco was granted a Fulbright Scholarship (2020-2021) from the Fulbright Commission. Columbia Law School awarded him the James Kent Scholarship (2021), its highest academic honor, in recognition of his outstanding academic achievement.
Francisco is fluent in English and Spanish.
Abril studied law at the Universidad Torcuato Di Tella (Argentina), where she was awarded the Merit Scholarship for her studies for being among the three best average grades. As a result of her outstanding academic performance, she obtained the “Academic Excellence Award” granted by the Bar Association of the City of Buenos Aires.
Abril worked as a Teaching Assistant of Public International Law and Special Criminal Law at the Universidad Torcuato di Tella. She has also interned at the database of the International Criminal Court.
Abril represented Universidad Torcuato Di Tella as a speaker at several prestigious competitions, such as the Philip C. Jessup International Law Moot Court Competition and the Foreign Direct Investment Moot. In the latter, she was awarded in the pre-moot held in Athens, Greece, as a member of the winning team and best speaker of the competition. She was also selected as the best speaker in the UTDT Criminal Law Competition, as well as in numerous national debate tournaments.
Abril was selected to participate in an exchange program with SciencesPo University, Paris, where she completed studies in international law in English, obtaining the highest grades.
Prior to joining Guglielmino International Law, she worked as Head of Operations at Brevity, a legaltech company focused on artificial intelligence applied to law.
She has acted as counsel in international investment arbitrations under ICSID, ICSID(AF) and UNCITRAL rules, as well as in international judicial disputes on behalf of companies in the oil sector.
Abril is fluent in Spanish and English.
Matías Toselli studied Law at the University of San Andrés (Argentina), where he graduated with Summa Cum Laude honors. He was a scholarship holder of said institution, receiving the “Academic Merit Award 2019”. Also, in 2021, he received the “Academic Excellence Award” from the Bar Association of the Ciudad Autónoma de Buenos Aires.
During his university stage, Matías was part of various research projects and was a teaching assistant. Likewise, he was Co-Director of the Law Review of the University of San Andrés, where he currently serves as Academic Coordinator.
Matías was part of the teams that represented the University of San Andrés in the International Arbitration Competition, in its XI and XIII editions. Since 2021, he has been part of the team of coaches for the Foreign Direct Investment Moot and actively participated as an evaluator in several university competitions, both in English and Spanish.
He has served as counsel in international investment arbitrations under ICSID and ICSID (AF) rules, and in international commercial arbitrations under ICC rules.
Matías speaks Spanish and English fluently.
Clara completed her law studies at the Torcuato Di Tella University (Argentina), after having started her Law Degree studies at the Complutense University of Madrid, Spain.
During her undergraduate studies, Clara participated in prestigious international plea competitions, including the Philip C. Jessup International Law Moot Court Competition and the Foreign Direct Investment International Arbitration Moot, where she participated as one of the team’s keynote speakers. This team was the winner of the pre-moot organized in Athens (Greece). Clara was also editor of the Latin American Journal of International Law and the Argentine Journal of Legal Theory, and has carried out studies on the State and Constitutionalism dictated by the Universidad de los Andes (Colombia).
She has worked as a lawyer in international investment arbitrations under ICSID, ICSID(AF) and UNCITRAL rules, and in international commercial arbitrations under ICC rules.
Clara is fluent in Spanish and English, and has working proficiency in French.
Lawyer, L.L.B. at Universidad Nacional de Cordoba (Argentina) and L.L.M. in International Business Law at Universidad Complutense de Madrid (Spain), having graduated with honors regarding his thesis about Third-Party Funding in International Arbitration.
During his academic development, he was an AFS active member and scholarship-holder for an exchange program in Bonn and Berlin (Germany) and for an Erasmus scholarship at Université de Versailles et St. Quentin-en-Yvelines (France), where he began his academic specialization on international public law and international arbitration.
Marcos has participated on several international arbitration Moots: First, as student representing Universidad Nacional de Córdoba on 2019, later founding and leading the EPJ-Universidad Complutense de Madrid team on 2020 (being granted honors and awards) and being team coach for Universidad Nacional de Cordoba at the present.
Before joining Guglielmino Derecho Internacional, Marcos obtained professional experience at several and diverse boutique firms in Argentina, Spain, and Peru. He has participated in judiciary and administrative proceedings, under local and international law concerning private, corporate, tax, labor, infrastructure, and energy controversies.
At the present, Marcos is furthering its academic specialization on International Arbitration at ARBANZA-Escuela de Arbitraje, where he was granted full-scholarship and recognized as first of the class. Also, he is active member and volunteer on several international organizations related to the arbitral practice such as YoungITA, AVYAP, IPA, LIA and Arbitraje Alumni.
Marcos is fluent on Spanish, English and French, with professional proficiency on German.
Catalina Aguirre Jones
Pursued a law degree at the University of Buenos Aires Law School (UBA) with a specialization in Public International Law.
She is a teaching assistant in Public International law at the University of Buenos Aires.
She was a member of the University team as oralist in the 2020 Philip C. Jessup International Law Competition, achieving numerous awards: National Rounds champion, Richard R. Baxter Award for Best Applicant Memorial, Hardy C. Dillard Award for Best Team Memorials (First Place), Alona E. Evans Award for Best Memorials at International Rounds (Second Place). Now she collaborates in the selection process of new teams that will represent the University in the Philip C. Jessup International Law Competition.
Also, she has been a research student and research fellow at the University of Buenos Aires in UBACyT and DECyT projects.
She has taken several courses in the field of Public International Law at the Leiden University (Netherlands), the University of Geneva (Switzerland), the University of London (United Kingdom), and the Case Western Reserve University (United States).
She has participated in the Latin American International Arbitration Course (LAIAC), a joint program of the Geneva Center for International Dispute Settlement (CIDS) and the Faculty of Law of the University of Buenos Aires. In addition, she has participated in the postgraduate course on International Trade Law and Policy, organized by the Geneva Graduate Institute (Switzerland).
Prior to joining Guglielmino International Law, Catalina worked in a law firm specialized in civil and labour law. She has also worked as a legal consultant for organizations in projects related to transparency and fight against corruption.
Catalina speaks Spanish and English fluently.
Gonzalo obtained his law degree at the “Universidad Torcuato Di Tella (argentina)”, where he received the “Beca al Mérito Academico” scholarship. He was awarded with the “Academic Excellence Award” granted by the Bar Association of the City of Buenos Aires.
Gonzalo represented Universidad Torcuato Di Tella in several competitions, including the Philip C. Jessup International Law Moot Court Competition and the Foreign Direct Investment International Arbitration Moot. In both competitions he was recognized and distinguished for his performance as a speaker, Including best speaker for the Jessup Competition Argentina National Rounds.
While studying in Di Tella University, he participated as a research assistant in diverse studies, including the “Supreme Court Project”
Prior to joining Guglielmino International Law, Gonzalo co-founded Brevity, a law-tech company dedicated to the automatization of legal processes. Before that, he worked as a legal assistant in the Gutierrez Eguía law firm, dedicated to corporate law.
Gonzalo is fluent in Spanish and English.
Lara is currently in her final year of her law degree at Torcuato Di Tella University (Argentina), where she obtained a Merit Scholarship for for having finished high school with the best grade average of her year group. She maintains an academic grade-point average of 9.40/10.
Lara is also currently in her final year of an online bachelors degree in International Relations and Political Science at the University of London, in its joint programme with the London School of Economics and Political Science (both based in England). She maintains a grade point average with merit, and has completed courses in economic development and international business.
Lara works as a teaching assistant of Public International Law and Tort and Insurance Law at Torcuato Di Tella University. She has also taught Private Law and has participated as a mentor in the constitutional law pleading competition at the same university. In addition, she has been part of a legal clinic on public international law for the United Nations Independent Investigation Mechanism for Myanmar and has conducted research on international law for the law schoool´s dean. Lara represented Torcuato Di Tella University as a speaker at the Phillip C. Jessup pleading competition.
Prior to joining Guglielmino International Law she worked at the law firm Bruchou & Funes de Rioja, and at the Asociación por los Derechos Civiles in Buenos Aires.
She has worked as a trainee in international investment arbitrations under UNCITRAL rules, and in international commercial arbitrations under ICC rules, in the petrochemical and food sectors.
Lara is fluent in Spanish and English and has working proficiency in French.
The university team coached by Matías Toselli obtained the Third Place in the 2022 FDI Arbitration Moot
From 3 to 6 November 2022, the global rounds of the 2022 Foreign Direct Investment Arbitration Moot were held at King’s College (London, United Kingdom).
Maria Eugenia Borrajo taught a class on “Arbitration as a dispute resolution mechanism and its regulation nowadays”.
Maria Eugenia Borrajo taught a class on “Arbitration as a dispute resolution mechanism and its regulation nowadays…
Guillermo Moro y Alejandro Vulejser participated as guest speakers in the third Arbitration Day organized by AYAP and AVYAP
On 16 June 2022 the third Arbitration Day organized by Argentina Young Arbitration Practitioners (AYAP) and AVYAP…