Lucas Passos


+ 55 21 3572-3199

Lucas is specialist in the resolution of domestic and international disputes (both judicial and arbitral). Lucas regularly advises clients in cutting-edge cases involving several areas of the Law – especially international law, civil law, corporate law and M&A and infrastructure – before State Courts and arbitral tribunals in Brazil and abroad. Lucas also advises clients in the pre-trial phase, serving as counsel during negotiations to prevent or reduce the impact of future disputes. He also advises clients in providing legal opinions and memoranda, drafting arbitration clauses and reviewing contractual clauses in order to guarantee the effectiveness of the contracted provisions in a dispute scenario.

Lucas is also part of our Compliance and Integrity practice and advises clients in anti-corruption matters by providing legal opinions and consultations, designing and implementing integrity programs and participating in investigations for breaches of the anti-corruption legislation.

Lucas has particular expertise in disputes related to the oil and gas, mining, electric energy, agriculture, renewable energy, banking and pharmaceutical sectors.


Ordem dos Advogados do Brasil
Associação Brasileira de Direito Internacional (ABDI)
International Council for Commercial Arbitration (Young ICCA)
Young International Arbitration Group – London Court of International Arbitration (LCIA)
Associação Brasileira de Estudantes de Arbitragem (ABEARB)
New Generation – Centro de Arbitragem e Mediação da Câmara de Comércio Brasil-Canadá
Comitê de Jovens Arbitralistas do Centro Brasileiro de Mediação e Arbitragem (CJA-CBMA


Universidade do Estado do Rio de Janeiro – UERJ (Mestrando em Direito Internacional, conclusão em 2020)
Hague Academy of International Law – Haia, Holanda (Curso de especialização em Direito Internacional Privado, 2015 e 2019)
The International Academy for Arbitration Law – Paris, França (Curso de especialização em Arbitragem Comercial Internacional)
American University (Washington College of Law) – Washington DC, Estados Unidos (Curso de especialização em Arbitragem Internacional)
Pontifícia Universidade Católica do Rio de Janeiro – PUC-RJ (Pós-graduado em Direito Processual Civil, 2017)
Universidade Federal do Estado do Rio de Janeiro – UNIRIO (Bacharelado em Direito, 2016)
Organização Mundial do Comércio – Genebra, Suíça (Curso de especialização em Direito do Comércio Internacional, 2015)
University College Dublin – UCD (Curso de férias em Corporate and Finance Law, 2015)

Recent publications

The Brazilian Arbitration Law (Federal Law No. 9,307/1996) enshrines, in its article 8, sole...[+]
In a recent judgment, the Third Panel of the Superior Court of Justice (STJ) ruled out the...[+]
International transactions, especially those carried out en masse through electronic commerce,...[+]