Betina Treiger Grupenmacher

Mariana is the Managing Partner and Head of Corporate and M&A at Leite, Tosto e Barros Advogados, bringing over two decades of experience in Corporate Law, Mergers & Acquisitions, Governance, Compliance, and Data Protection. As Managing Partner, she leads the firm’s strategic direction and ensures operational excellence across finance, IT, marketing, and administration—combining leadership vision with technical and business precision. As Head of Corporate and M&A, Mari...

Partner at Wald, Antunes, Vita e Blattner Advogados (São Paulo, Brazil); LLB, Master in Laws and PhD at University of São Paulo Law School; LL.M. in International Business Regulation, Litigation and Arbitration at NYU School of Law (Arthur T. Vanderbilt Scholar); Vice-President of the Brazilian Bar’s Special Arbitration Commission; Director at the Mediation and Arbitration Center at the Brazil-Portugal Chamber of Commerce; CIArb Fellow; Author of several articles on arbitr...

Gustavo Leonardos is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Gustavo, who practices law in Rio de Janeiro, Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gustavo is held by other top lawyers in the same geographic and legal practice area.

Creuza de Abreu Vieira Coelho is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation and Tax Law. Creuza de Abreu, who practices law in Rio de Janeiro, Brazil, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Creuza de Abreu is held by other top lawyers in the same geographic and legal practice area.

Ana Cristina de Paulo Assunção is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Ana Cristina de Paulo, who practices law in São Paulo, Brazil, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ana Cristina de Paulo is held by other top lawyers in the same geographic and legal practice area.

Douglas Guidini Odorizzi is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Douglas, who practices law in São Paulo, Brazil, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Douglas is held by other top lawyers in the same geographic and legal practice area.

Fabiana Fittipaldi Morade is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Fabiana, who practices law in São Paulo, Brazil, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fabiana is held by other top lawyers in the same geographic and legal practice area.

Mastering in Tax Law at the Programa de Pós-Graduação of the Instituto Brasileiro de Ensino, Desenvolvimento e Pesquisa (IDP) in Brasília. Postgraduate in Tax Law from the Instituto Brasileiro de Ensino, Desenvolvimento e Pesquisa (IDP). Bachelor’s Degree in Law from Universidade do Distrito Federal (UDF). Mainly serves the Tax Litigation area before the Federal Supreme Court, Superior Court of Justice and the Federal Regionals Courts focusing on Tax Law and ...

José Gustavo Braga is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. José Gustavo, who practices law in Rio de Janeiro, Brazil, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which José Gustavo is held by other top lawyers in the same geographic and legal practice area.

Partner at Sergio Bermudes Advogados. Arbitration Practitioner and Civil Litigator specializing in national and cross-border Corporate, Commercial and Insolvency/Reorganization issues. Graduate in Law from the Pontifícia Universidade Católica of Rio de Janeiro (PUC-RIO) and holder of a Master’s Degree (LL.M) from the Université Paris 1 - Panthéon-Sorbonne. Completed professional training in Negotiation at Harvard Law School in 2009. Current Vice-President of ...