Thais Maria Dias de Oliveira

Mirella da Costa Andreola is a lawyer recognized by Best Lawyers in the practice area of Corporate and M&A Law. Mirella da Costa practices law in São Paulo, Brazil Best Lawyers has recognized Mirella da Costa Andreola 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 Mirella da Costa Andreola is held by other lawyers.

Ms. Renata Araujo has over 25 years of experience, with her career consistently focused on Labor Law. She leads the defense in labor litigation for major national and multinational companies across the energy, infrastructure, civil construction, aviation, textile, food, and paper and pulp sectors, among others. Ms. Araujo conducts strategic and preventive approaches for clients. She possesses vast expertise in monitoring corporate restructurings and judicial reorganizations, acting in the res...

Joyce Roysen is a lawyer recognized by Best Lawyers in the practice area of Corporate Criminal Law. Joyce practices law in São Paulo, Brazil Best Lawyers has recognized Joyce Roysen since 2019. 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 Joyce Roysen is held by other lawyers.

Mário Luiz Oliveira da Costa is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Mário Luiz practices law in São Paulo, Brazil Best Lawyers has recognized Mário Luiz Oliveira da Costa since 2018. 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 Mário Luiz Oliveira da Costa is held by other lawyers.

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

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.

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...

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.

Thiago Ramos Barbosa is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Thiago practices law in São Paulo, Brazil Best Lawyers has recognized Thiago Ramos Barbosa 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 Thiago Ramos Barbosa is held by other lawyers.

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...