Roberta Graziela dos Santos Aronne

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...

Luiz Antonio Varela Donelli is a lawyer recognized by Best Lawyers in the practice area of Insolvency and Reorganization Law. Luiz Antonio Varela practices law in São Paulo, Brazil Best Lawyers has recognized Luiz Antonio Varela Donelli 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 Luiz Antonio Varela Donelli is held by other lawyers.

Mariana Tavares Antunes holds a bachelor’s degree in law from the Pontifical Catholic University of São Paulo (PUC-SP) and is a member of the São Paulo Lawyers Institute (IASP). She attended the Advanced Mediation Workshop: Mediating Complex Disputes, of the Harvard Negotiation Institute (HNI), in 2017.

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...

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.

Fabiana Fittipaldi Morade is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Fabiana practices law in São Paulo, Brazil Best Lawyers has recognized Fabiana Fittipaldi Morade 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 Fabiana Fittipaldi Morade 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...

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.

Mauro Takahashi Mori is a lawyer recognized by Best Lawyers in the practice area of Corporate and M&A Law. Mauro Takahashi practices law in São Paulo, Brazil Best Lawyers has recognized Mauro Takahashi Mori since 2025. 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 Mauro Takahashi Mori is held by other lawyers.

Clarissa Marcondes Macéa is a partner at Wald, Antunes, Vita e Blattner Advogados, holds a bachelor’s degree from the University of São Paulo (USP), a Master of Laws (LL.M.) from Harvard University, and attended the École Nationale d’Administration – ENA (CISAP). She has worked as a Law Clerk at the Brazilian Supreme Court (2017-2020), was the Legal Head for the Assistance and Social Development Secretariat of the City of São Paulo (2015-2017), an...