Tércio Chiavassa

Partner Andreas has extensive experience in Labor, Employment, and Social Security Law, with a distinguished track record in strategic litigation and oral arguments before the Regional Labor Courts. He represents major investment banks and multinational corporations in the energy, metallurgy, telecommunications, construction, logistics, and outsourcing sectors in highly complex and institutionally significant disputes. He also represents Leite, Tosto e Barros and its clients before the Superi...

Arnoldo Wald Filho holds a Bachelor Degree in Law from Cândido Mendes University (1986) and a certificate in Advanced Mediation from Harvard Law School (2017). He is currently Federal Counsel of OAB São Paulo, President of the Institutional Relations Commission of OAB/SP, President of the Center for Mediation and Arbitration of the Portuguese Chamber of Commerce in Brazil and arbitrator of the Ciesp/Fiesp and FGV Chambers. Since 1986, he is Honorary Consul of Monaco in Brazil. Fo...

Prof. Dr. Marcelo von Adamek is the founding partner of Advocacia von Adamek, bringing to his firm more than 25 years of legal expertise across a diverse range of practice areas, including Corporate Law & Capital Markets, Business Contracts, Private Insurance, Mergers & Acquisitions, Restructuring & Bankruptcy, and Civil & Business Litigation. His comprehensive services include strategic consulting, litigation, and delivering legal opinions. Prof. Dr. von Adamek’s distin...

Eduardo Amirabile de Melo is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Eduardo Amirabile practices law in São Paulo, Brazil Best Lawyers has recognized Eduardo Amirabile de Melo since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Eduardo Amirabile de Melo is held by other lawyers.

Ricardo Tosto is a partner and one of the founders of the firm. He works particularly in the areas of Credit Recovery, Banking Contracts, Bankruptcy, Judicial Reorganization, Acquisition Review, Corporate Restructuring, Administrative, Electoral, Civil and Commercial Law. Previously, Mr. Tosto worked as an advisor to the Legal and Human Resources Board of Grupo Rede and as director of the Rede Private Pension Foundation. He was president of the Judiciary Modernization Commission and the Judic...

With a highly specialized profile, in the indirect taxes area, Mauri serves domestic and multinational companies, taking part in several tax and corporate restructuring transactions and following up on new structures.

José Mauricio Machado is a lawyer recognized by Best Lawyers in the practice area of Tax Law. José Mauricio practices law in São Paulo, Brazil Best Lawyers has recognized José Mauricio Machado since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which José Mauricio Machado is held by other lawyers.

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...

Alex Costa Pereira is a lawyer recognized by Best Lawyers in the practice area of Litigation. Alex Costa practices law in São Paulo, Brazil Best Lawyers has recognized Alex Costa Pereira since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alex Costa Pereira is held by other lawyers.

Rodrigo Quadrante is a lawyer recognized by Best Lawyers in the practice area of Insolvency and Reorganization Law. Rodrigo practices law in São Paulo, Brazil Best Lawyers has recognized Rodrigo Quadrante since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Rodrigo Quadrante is held by other lawyers.