Sami Arap

Zilma Aparecida S. Ribeiro, is responsible for the labour department of the firm, both in the litigation and in the advisory areas. She graduated in law from the Law School of the University of São Paulo from which she holds a Masters Degree. Ms. Ribeiro has over 30 years of experience working as a lawyer, both in-house and as a legal consultant. Ms. Ribeiro also completed a Specialization Course in Civil Procedure at the Law School of the University of São Paulo. She has been r...

Mauro Takahashi Mori is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. Mauro Takahashi, who practices law in São Paulo, Brazil, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mauro Takahashi is held by other top lawyers in the same geographic and legal practice area.

Raphael Valentim is a partner with extensive expertise in Corporate, Corporate Governance and Compliance. He has more than fifteen years of experience participating in or leading business structuring projects involving foreign companies, corporate restructuring, shareholder agreements, corporate investigations, implementation of compliance programs and advisory services legal in business areas. He is a highly qualified and experienced professional with a successful track record in efficiently...

Luis Antonio da Gama e Silva Neto is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Luis Antonio, who practices law in São Paulo, Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luis Antonio is held by other top lawyers in the same geographic and legal practice area.

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...

Alessandra Mara Cornazzani Sales is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law. Alessandra Mara Cornazzani, 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 Alessandra Mara Cornazzani is held by other top lawyers in the same geographic and legal practice area.

Specializing in Tax Litigation, Daniel has been handling judicial and administrative litigation in matters of federal, state and municipal taxes, including advising on cases before the Federal Supreme Court, presenting oral arguments before the Full Session of the Court, the Superior Court of Justice, and the 1st and 2nd panels of the Court. He also presents oral arguments before the Administrative Council of Tax Appeals (CARF) and before panels of the High Court of Tax Appeals. Maya conducts...

Hamilton Dias de Souza is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Hamilton, who practices law in São Paulo, Brazil, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hamilton is held by other top lawyers in the same geographic and legal practice area.

Eduardo Correa da Silva is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Eduardo, 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 Eduardo is held by other top lawyers in the same geographic and legal practice area.

Décio Policastro is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Civil Rights Law and Litigation. Décio, who practices law in São Paulo, Brazil, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Décio is held by other top lawyers in the same geographic and legal practice area.