André Calumby

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

José Mauricio Machado is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. José Mauricio, 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 José Mauricio 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...

Specialist in Tax Litigation and Advisory, Fernando Westin has a robust background in leading tax litigation teams for both domestic and multinational companies. As a partner focused of the Tax Litigation team in São Paulo, Westin excels in administrative and judicial tax disputes, due diligence processes, and participation in amnesty and installment programs. Recognized as a Highly Recommended Lawyer by ITR World Tax, Highly Recommended by Chambers Brazil, and a Highlight in Best Lawy...

Mr. Areno has worked on more than 40 offerings, including of Banco BTG Pactual, Azul, Ultrapar, Cosan, Tarpon, BR Malls, Iguatemi, MetLife and Banco do Brasil. In addition, he has been involved in several mergers and acquisitions, including representing Deutsche Bank AG as financial advisor to Enersis Américas S.A. (Chile) in the US$22 billion restructuring of certain companies controlled by Enel (recognized as a 2017 Global Finance Deal of the Year (Insolvency and Restructuring) by Th...

Rubens Bezerra Filho has 25 years of experience and is a partner in the contracts and corporate area. Over the years, Rubens has worked in transactions involving natural and legal persons, both domestic and foreign, such as mergers and acquisitions, corporate reorganizations, associations involving Brazilian and foreign entities, corporate structuring of real estate projects, foreign investments in Brazil, idealization, development and implementation of assets protection planning and successi...

Carolina Duarte Martins is a corporate partner at Leite, Tosto e Barros Advogados with 31 years of national and international experience in large corporations and mid-sized law firms, , with a specialization in the Middle Market. She has honed her expertise in corporate consulting, commercial law, real estate law, civil litigation, regulatory compliance, and media and internet law. She acts with aptitude in providing strategic advice on corporate matters, ensuring optimal results for clients,...

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.

Antônio Lopes Muniz is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law and Labor and Employment Law. Antônio, 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 Antônio is held by other top lawyers in the same geographic and legal practice area.

JOSÉ THEODORO ALVES DE ARAÚJO Partner Office: São Paulo E-mail: taraujo@araujopolicastro.com.br Dir. phone: (55) (11) 3049-5705 Areas of Practice Corporate, Banking and Capital Markets, Infrastructure, Regulatory and Administrative Law. Education • Bachelor of Laws (LL.B.) from Universidade de São Paulo Law School – USP (1962); • Career improvement course on Financial System at Getulio Vargas Business School (1963); • Career improvement course ...