Doris Castelo Branco

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

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.

André Serrão holds Bachelor’s (1994) and Master’s (1999) degrees in Law from the Federal University of Brasília. He is the founder partner of Serrão Advogados and has recognized expertise in energy law, specifically assisting the pivotal players of the Brazilian power sector (generation, transmission, distribution and trading companies of electric energy) in key regulatory issues and disputes. He also has a very strong practice in supporting and advisin...

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...

Fernanda Galvão is an executive partner of Vilas Boas, Lopes e Frattari Advogados and head of the Contracts and Compliance Team, with more than 17 years of experience in Civil Law, working with national and international clients. Fernanda and her team work with contractual drafting and revision using Legal Design techniques, analysis of claims against our clients, and assistance with negotiations of contracts and claims. She is responsible for the compliance program of the firm, includ...

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...

Alberto Medeiros is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Alberto, who practices law in Brasília, Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alberto is held by other top lawyers in the same geographic and legal practice area.

Maria Tereza Dias is an executive partner of Vilas Boas, Lopes e Frattari Advogados, responsible for coordinating the administrative/regulatory law team, an area in which she has over 20 years of experience, including previous work in administrative and judicial litigation and in consultancy. Maria Tereza was graduated from Universidade Federal de Minas Gerais (1998) and also has a Master and PhD in Administrative and Regulatory Law by Universidade Federal de Minas Gerais (2001 and 2007). Bes...

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...

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.