Daniel Ustarroz

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 ...

Afonso Marcius Vaz Lobato is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Afonso Marcius, who practices law in Belém, Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Afonso Marcius is held by other top lawyers in the same geographic and legal practice area.

João Augusto Basilio is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. João Augusto, who practices law in Rio de Janeiro, Brazil, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which João Augusto is held by other top lawyers in the same geographic and legal practice area.

Carolina Duarte Martins is a corporate partner at Leite, Tosto e Barros Advogados with 31 years of national and international experience in large corporations and mid-sized law firms, , with a specialization in the Middle Market. She has honed her expertise in corporate consulting, commercial law, real estate law, civil litigation, regulatory compliance, and media and internet law. She acts with aptitude in providing strategic advice on corporate matters, ensuring optimal results for clients,...

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.

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...

Cláudio Pimentel, founding partner of P&R Advogados, is recognized for his solid track record of more than 30 years of legal practice and is one of the leading names in Brazilian law. A 1985 graduate of the Pontifical Catholic University of Rio Grande do Sul, specializing in civil procedure and tax law, Cláudio is widely recognized for his strategic approach to complex cases in both judicial and administrative litigation. His practice is characterized by excellence in variou...

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...

Zanon de Paula Barros is one of the founding partners of Leite, Tosto e Barros and his work is recognized by various publications. As an example of his participation in relevant cases, he took an active part, at the beginning of the privatization processes, in the telecommunications and electricity tenders. Advised a business group on the transfer of several cable television concessions. He also advised a client on the sale of a very large sugar and alcohol company

Senior Partner at “A. Lopes Muniz Advogados Associados in São Paulo, Brazil, since 2004, with more than 40 years of experience working as a lawyer, both in-house and as a legal consultant. Author of several articles on Life Sciences Regulatory, Business Ethics, and Intellectual Property, published in different media with copies maintained at www.marcoslevy.blogspot.com.br Director of Legal and Corporate Affairs of MSD Brazil (Merck & Co, Inc.) from 1991 to 2002, Legal Directo...