Members

Formado em Direito pela Pontifícia Universidade Católica de São Paulo (PUC-SP). Atualmente é Juiz de Direito do Tribunal de Justiça do Estado de São Paulo (TJSP), tendo sido aprovado em 1º lugar na prova oral do concurso. É ainda Juiz da 382ª Zona Eleitoral do Tribunal Regional Eleitoral de São Paulo (TRE-SP) e integrante da 2ª Turma do Colégio Recursal da Fazenda Pública de Santo André. Foi orador titular da equipe da PUC-SP no 17º Willem C. Vis Moot (Viena, Áustria – 2010) e coach das equipes da PUC-SP no 19º Willem C. Vis Moot (Viena, Áustria – 2012) e no 10º Willem C. Vis Moot East (Hong Kong – 2013). Bolsista da PUC-SP, por mérito acadêmico, na Faculdade de Direito da Universidade de Durham (Reino Unido – 2010). Aprovado também no 56º Concurso de Ingresso na Magistratura do Estado de Goiás (TJGO – 2016).

Bruno Wontroba has been a CIArb member (Associate) since 2022. He works as lawyer at Justen, Pereira, Oliveira & Talamini, based on Curitiba, São Paulo and Brasília. He joined the firm as a student intern in 2013, becoming a lawyer in 2016. His main area of academic expertise is civil procedural law. Bruno Wontroba is graduated in law from the Federal University of Paraná (2015) and holds a master degree in Civil Procedure Law from the same institution (2019), writing a thesis on procedural contracts. Also, he has been a member of the Brazil Infrastructure Institute since 2016.

Associate in Selma Lemes Advogados. Experience with Transnational Dispute Resolution and Commercial Arbitration in Brazil.

Bruno Gressler Wontroba ingressou na Justen, Pereira, Oliveira & Talamini em 2013, como estagiário, e, desde 2016, é advogado.

Graduou-se pela Universidade Federal do Paraná (UFPR) em 2015.

É mestrando em Direito Processual Civil na Universidade Federal do Paraná (UFPR), desde 2017.

É membro do Brazil Infrastructure Institute, desde 2016.

Barrister, England and Wales (1997) and Attorney, New York (2002). Celso has a broad international commercial practice with recognized expertise in reinsurance, cyber insurance, cybersecurity, data breach, cryptocurrency, fraud, asset-tracing, and business interruption insurance law as well as regulatory investigations, comprising both advisory and contentious work. Having worked for over 23 years as an international litigation solicitor and partner in several international UK and US law firms based in the City of London, Celso has extensive expertise in complex multi-jurisdictional arbitrations and court proceedings worldwide.

Celso is a founding committee member of the Cyber Insurance Association and past President of the London Business Interruption Association. He is a Fellow of the Chartered Institute of Arbitrators (FCIArb), and a former visiting lecturer at the Centre for Energy, Petroleum, Mineral Law and Policy, University of Dundee (CEPMLP). Celso also accepts appointments to act as an arbitrator.

Publications: (1) Chapter “International Arbitration-Insurance and Reinsurance (London Market)” in International Commercial Arbitration Practice: 21st Century Perspectives, LexisNexis (available here);  (2) Cyber Risks Insurance – Law and Practice, 1 ed., Sweet & Maxwell; and (3) Walmsley on Business Interruption Insurance, 2 ed.,  Witherby Insurance.

Lawyer graduated from Pontifical Catholic University of Peru, with a Master degree in International Economic Law from the University of Warwick – England, specialized in International Law, National and International Arbitration and Protection of Foreign Investment. Currently with residence in Brazil.

Partner of the Departments of Arbitration & ADRs of the firm Wöss Partners S.C., based in Mexico and Washington DC and of the firm Braz Campos Advogados, with offices in São Paulo and Curitiba, Brazil.

Director of Arbitration of the Chamber of Mediation and Arbitration of Santa Catarina, south of
Brazil (CAMESC). Former Secretary General of the International Arbitration Center of the Lima
Chamber of Commerce (CCL), Peru. Experience as arbitrator in commercial, civil and public
procurement issues in infrastructure projects, in Peru and Brazil. Legal advisor to foreign
investors in international arbitrations before ICSID (Washington), ICC and GAFTA (London).

University Professor and Speaker of International Trade, National and International Arbitration
and Protection of Foreign Investments in Peruvian and Brazilian Universities.

Associate Editor for Brazil and Peru of Transnational Dispute Management (TDM) Online
Journal and President of the Committee on Public and Private International Law of the Inter-
American Bar Association (IABA), Washington DC.

Author of several articles related to International Arbitration and Foreign Investment in
specialized Law Journals

Cristina M. Wagner Mastrobuono is an arbitrator and legal consultant with a large experience in the public sector. She is a JD from Universidade de São Paulo and holds an LLM degree from the University of Chicago. Former Vice Chair of the Legal Department of the State of São Paulo,  she has occupied various high-profile positions across practice areas including Infrastructure, Public-Private Partnerships, Concessions, Arbitration, Corporate, and Finance & Tax. Founding partner of Cristina Mastrobuono Advogados, she acts as arbitrator in proceedings related to the infrastructure sector and coordinates the Infrawomen Brazil Mediation and Arbitration Committee.

Daniel B. Ferreira is the CEO of the Brazilian Center for Mediation and Arbitration – CBMA. He is also a professor of at AMBRA University (USA), Senior Researcher at South Ural State University, and research fellow at the State University of New York at Buffalo.

Author and co-author of several papers in ADR, published in high-ranked journals, including Scopus and Web of Science, monographs, and textbooks. Daniel is also Editor-In-Chief of the scopus indexed Brazilian Journal for Alternative Dispute Resolution (RBADR) and Co-Editor-in-Chief of the International Journal of Law in Changing World (IJLCW). Daniel is a Fellow at the Chartered Institute of Arbitrators (CIArb), qualified mediator at the International Mediation Institute (IMI), and Young Regional Chair for Brazil at the Institute for the Transnational Arbitration (ITA)

Advogado em Justen, Pereira, Oliveira & Talamini. Mestre em processo civil pela UFPR.

Eduardo Grebler é graduado em Direito pela Universidade Federal de Minas Gerais, LL.M. pela Columbia University School of Law. Sócio de Grebler Advogados em Belo Horizonte e São Paulo. Atua como árbitro e advogado, tendo participado em mais de uma centena de procedimentos arbitrais domésticos e internacionais, em disputas envolvendo direito societário, compra e venda internacional de mercadorias e serviços, contratos de construção e infraestrutura e arbitragem de investimento, dentre outros. Fellow do Chartered Institute of Arbitrators, membro da lista de árbitros de diversas instituições arbitrais brasileiras e estrangeiras. Designado pelo Governo do Brasil como árbitro do Protocolo de Olivos do Mercosul e como membro da Corte Permanente de Arbitragem da Haia. Professor de Direito Internacional Privado na PUC/MG. Publicou cerca de sessenta trabalhos sobre arbitragem, contratos internacionais e direito internacional privado, no Brasil e no exterior

Advogada e Mediadora. Head de resolução de conflitos da Paschoa Sociedade de Advogados. Mediadora certificada no Brasil e no Reino Unido. Bacharel em direito pela Fundação Armando Alvares Penteado (FAAP/SP). Pós-graduada em Direito Processual Civil pela Pontifícia Universidade Católica (PUC/SP). Mediadora formada pela Fundação Getúlio Vargas (FGV/SP). Accredited Mediator pela London School of Mediation (LSM). Membro associado ao Chartered Institute of Arbitrators – ACIArb (Corporate Mediation).

– Professor at the Pontifical Catholic University of Paraná – PUCPR
– LL.M. in International Trade Law at the University of Turin, Italy
– Master in Economic Law at the Pontifical Catholic University of Paraná – PUCPR
– Attorney at the Attorney General Office of the State of Paraná (PGEPR)

Mediador Judicial (TJSP – Tribunal de Justiça do Estado de São Paulo) e Extrajudicial em algumas das principais câmaras brasileiras. Certificado por IMI – International Mediation Institute, ICFML – Instituto de Certificação e Formação de Mediadores Lusófonos e ODR Foundations Training. Facilitador. Árbitro. Fellow do CIArb – Chartered Institute of Arbitrators (Reino Unido). Advogado. Professor em cursos de gradução e pós-graduação em Direito. Autor de livros e artigos jurídicos. Mestre e Doutor em Direito Processual pela USP – Universidade de São Paulo. Capacitado em Mediação pela Mediaras Mediaciones Privadas (ARG) e pela Algi Mediação. Capacitado em Negociação pela FGV – Fundação Getúlio Vargas. Especialista em Mediação de Conflitos Complexos e em Negociação pelo PON – Program on Negotiation da Harvard Law School (EUA). Capacitado e certificado em Dispute Board pela DRBF – Dispute Resolution Board Foundation (EUA). Membro da AASP – Associação dos Advogados de São Paulo; da ABDEM Associação Brasileira de Direito de Energia e do Meio Ambiente; do CBAr – Comitê Brasileiro de Arbitragem; do CEAPRO – Centro de Estudos Avançados de Processo; da DRBF – Dispute Resolution Board Foundation; do IASP – Instituto dos Advogados de São Paulo; do IBDP – Instituto Brasileiro de Direito Processual; da INSOL International; e da TMA – Turnaround Management Association Brasil. Membro Efetivo da Comissão de Soluções Consensuais da OAB/SP – Seção de São Paulo da Ordem dos Advogados do Brasil.

Lawyer from the Universidad Nacional Mayor de San Marcos and Master in Real Estate Consulting from the Faculty of Economics and Business of the University of Barcelona. He has worked in the Real Estate and Arbitration departments at Baker & Mckenzie in Barcelona (Spain) and is currently a Partner at Huanco Abogados. He works as an arbitrator and lawyer in arbitrations in public and private contracts, and in processes of execution and annulment of arbitral awards.

In addition, he is a member of the Spanish Arbitration Club (CEA) and the Young International Arbitration Group (London). He has been Technical Secretary and Advisor of the Working Group that was responsible for proposing improvements to the Civil Code designated by the Ministry of Justice and Human Rights. He is a professor of Real Estate, Obligations, Contracts and Arbitration at the Faculties of Law of the UPC and Universidad del Pacífico, and in the Master; Degree in Civil and Commercial Law of the UNMSM.

Admitted to practice (Brazil) in 2012. FCIArb member since 2021. Associate lawyer at Justen, Pereira, Oliveira e Talamini, with experience in arbitration, corporate law and contracts. General Secretary of Chamber of Arbitration and Mediation of FIEP – CAMFIEP.

Associado com atuação nas áreas de contencioso civil, comercial e administrativo, arbitragem, direito societário e contratos.

Sócio fundador do escritório J.E. TOLEDO SOCIEDADE DE ADVOGADOS; cofundador do Instituto Brasileiro de Arbitragem e Transação Tributária – IBATT; Doutorando em Relações Econômicas Internacionais pela PUC-SP; Mestre e Especialista em Direito Tributário pela Faculdade de Direito da PUC-SP; Extensão em Arbitragem pela PUC-SP; Membro da XX Turma do Tribunal de Ética e Disciplina da OAB/SP; Árbitro na CAMES e CAMCA-OAB/SP; Associado ao Chartered Institute of Arbitrators (CIArb); Membro do Comitê Brasileiro de Arbitragem – CBAr; Coordenador do curso de extensão: Arbitragem – Teoria e Prática (IBET); Professor conferencista do curso de especialização em Direito Tributário do IBET, APET e CERS; Foi Professor no Insper (LLm em Direito Tributário – matérias ICMS, IPI e ISS; Tributação Aduaneira e Comércio Exterior) e na Fundação Getúlio Vargas (GVlaw) nas disciplinas “Fusões, Aquisições, Reorganizações Societárias e Due Diligence” e “Tributação das Indústrias”; ex- juiz do Tribunal de Impostos e Taxas da Secretaria da Fazenda do Estado de São Paulo; Palestrante em diversos seminários sobre Direito Tributário; Autor e co-autor de vários livros e artigos sobre Direito Tributário e Arbitragem; Orientador em cursos de graduação e de pós-graduação.

A UK-qualified and US-based lawyer, Juliya Arbisman has a broad international law practice with a focus on complex jurisdictions (Africa, Middle East and CIS), complex industries (mining and energy), and complex claims (parallel criminal-civil proceedings). Juliya is experienced in serving as lead counsel in international arbitrations under the LCIA, ICC, ICDR, SCC, AAA, SIAC, Swiss Chamber, PCA, ICSID and ad hoc rules. She represents clients in a number of court-based applications regarding arbitration (in the UK and elsewhere), including injunctions, set-aside claims, and enforcement proceedings.

Juliya has particular experience in mining and energy sector cases involving both public and private projects that ranged in value from $100m to $7bn. She has worked on some of the largest ever claims under the Energy Charter Treaty, many of which concerned the former CIS countries. Juliya holds a Non-Executive Director position in a mining advisory firm in London.

Juliya also has substantial experience on protection of property and fair process cases in international and regional courts in Europe, Africa and Americas. She has appeared in many proceedings before the European Court of Human Rights. She has co-counseled on claims at the UK Privy Council arising from Commonwealth jurisdictions. These
claims have ranged from judicial review over energy regulation, judicial review over declaration of marine protection area that had excluded an aboriginal population in the Indian Ocean, habeas corpus and other submissions invoking diplomatic and consularlaw.

Juliya joined Steptoe from a national law firm where she headed the International Practice and was a member of the executive committee. Juliya began her career in the international arbitration group of a major UK international law firm in London.

Partner of R. Amaral, Huland, Castro Alves, Linhares; Barros Leal Law Firm, in charge to manage the corporate and international areas of practice, having strong expertise in advising foreign investors, bankrupt estates and companies operating in the markets of real estate, tourism, hospitality, construction and transports. Bachelor of Law at the University of Fortaleza – UNIFOR, Specialist in Business Law at the Pontifical Catholic University of São Paulo –
PUC/SP, Master in International Law at the Lisbon University School of Law – FDUL. Registered in the Brazilian and Portuguese Bar Associations. Member of the Arbitration and Mediation Unit of the Alliance of Business Lawyers – ABL (Geneva), Vice-President of the Brazilian-German Chamber of Commerce and Industry of Ceará – CCIBAC (Fortaleza), Member for Brazil for the Deutsch-Brasilianische Gesellschaft – DBG (Berlin), Professor of the LL.M. Business Law and Management of the University of Fortaleza – UNIFOR (Fortaleza), Arbitrator of the Specialized Arbitration and Mediation Chamber – CAMES (Fortaleza). Worked professionally in arbitrations, due diligences, business acquisitions, corporate restructuring, international finance, corporate conflicts, insolvency proceedings, projects to implement corporate governance rules, disputes on intellectual property rights, negotiation of international agreements, as well the incorporation, merger and split of companies. Was speaker in Brazil and abroad in panels related to foreign capital, investment attraction and Brazilian legal system. Author of the book; From the Development to the Consolidation of the Legal Institute of Nationality in International Law;
(2020).

Graduated in Law (São Paulo State University) and in Business (Getúlio Vargas Foundation). MBA in Agribusiness (São Paulo State University). Master in Civil Procedure (Londrina State University). Certificated in Negotiation by Harvard Law School. Ph.D. candidate in Sociology, researching gender equality in Brazilian State Courts.

Professor of Arbitration and ADRs at Londrina State University.

Director of Arbitration at the Chamber of Mediation and Arbitration in Agribusiness (CAMAGRO). Member of the Arbitration in Agribusiness studies group at the Brazilian Arbitration Committee (CBAr)

Member of the Brazilian Arbitration Committee (CBAr) group of Diversity and member of the Diversity and Inclusion Committee of Alumni Getúlio Vargas Foundation (Business School

Founding partner of L. Baddauy Advocacia (law firm).

Fellow of Chartered Institute of Arbitrator (London-UK), the Malaysian Institute of Arbitrators, and the Arbitrators and Mediators Institute of New Zealand. Coordinator of the Agribusiness Committee of the Brazilian branch of CIArb.