Tércio Chiavassa

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...

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...

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...

Founding partner, Fernando Loeser is a tax specialist. He has a particular interest in litigation and acts on consultation matters. He covers the full spectrum of tax issues direct and indirect taxation and is frequently seen acting before the Superior Courts of Brazil. Fernando is well qualified to tackle complex litigation at judicial and administrative levels. He covers the full spectrum of tax issues, direct and indirect taxation and is frequently seen acting before the Superior Courts of...

André Blotta Laza is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. André Blotta practices law in São Paulo, Brazil Best Lawyers has recognized André Blotta Laza since 2025. 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 André Blotta Laza is held by other lawyers.

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

Regina C. Baraldi Bisson is a lawyer recognized by Best Lawyers in the practice areas of Civil Rights Law, Labor and Employment Law and Real Estate Law. Regina C. practices law in São Paulo, Brazil Best Lawyers has recognized Regina C. Baraldi Bisson since 2020. 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 Regina C. Baraldi Bisson is held by other lawyers.

Stephanie Makin is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Stephanie practices law in São Paulo, Brazil Best Lawyers has recognized Stephanie Makin 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 Stephanie Makin is held by other lawyers.

Aluisio Berezowski is a lawyer recognized by Best Lawyers in the practice area of Litigation. Aluisio practices law in São Paulo, Brazil Best Lawyers has recognized Aluisio Berezowski since 2022. 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 Aluisio Berezowski 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...