Lucas Monteiro de Souza

João Ruggero Lopez is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. João Ruggero, 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 João Ruggero is held by other top lawyers in the same geographic and legal practice area.

Graduated from the Pontifical Catholic University of Rio de Janeiro and holds a Master’s degree (LL.M) from the University of Chicago Law School. She has over 25 years of experience in corporate law, particularly in M&A, corporate finance, financial transactions, corporate restructuring, strategic contracts, and corporate advisory

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...

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.

Ana Cristina de Paulo Assunção is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Ana Cristina de Paulo, 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 Ana Cristina de Paulo is held by other top lawyers in the same geographic and legal practice area.

Alexandre de Mendonça Wald holds a Bachelor Degree in Law from Cândido Mendes University (1984) and a Master of Law from University of Pennsylvania Law School (1986). Throughout his career, he has served as president of the UPenn Alumni Club in Brazil and is recognized among the most admired lawyers in various professional rankings, such as Latin Lawyer250, Chambers and Partners, Analysis Advocacy and The Legal 500.

Mário Luiz Oliveira da Costa is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Mário Luiz, who practices law in São Paulo, Brazil, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mário Luiz is held by other top lawyers in the same geographic and legal practice area.

Caio Julius Bolina is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Caio Julius, 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 Caio Julius is held by other top lawyers in the same geographic and legal practice area.

Rodrigo Quadrante is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law. Rodrigo, 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 Rodrigo 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...