Juliano Rotoli Okawa

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...

Head of the M&A, Banking and Services and Financial Transactions. Marcela graduated originally in Law in Public Business. 29 years of experience inclusive at golden circle law firms (both Brazilian and international), investment banks (in the front office, law department and as Compliance Officer ) and as head of the Law Department of one of the most efficent sustainable energy and alchool companies, with more than R$22 billion in debt transactions (debentures, LCIs, CRIs, notes, private ...

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...

J. Mathias von Bernuth is a lawyer recognized by Best Lawyers in the practice areas of Banking and Finance Law, Capital Markets Law, Corporate and M&A Law and Real Estate Law. J. Mathias practices law in São Paulo, Brazil Best Lawyers has recognized J. Mathias von Bernuth since 2015. 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 J. Mathias von Bernuth is ...

Zilma Aparecida S. Ribeiro, is responsible for the labour department of the firm, both in the litigation and in the advisory areas. She graduated in law from the Law School of the University of São Paulo from which she holds a Masters Degree. Ms. Ribeiro has over 30 years of experience working as a lawyer, both in-house and as a legal consultant. Ms. Ribeiro also completed a Specialization Course in Civil Procedure at the Law School of the University of São Paulo. She has been r...

Arnoldo Wald Filho holds a Bachelor Degree in Law from Cândido Mendes University (1986) and a certificate in Advanced Mediation from Harvard Law School (2017). He is currently Federal Counsel of OAB São Paulo, President of the Institutional Relations Commission of OAB/SP, President of the Center for Mediation and Arbitration of the Portuguese Chamber of Commerce in Brazil and arbitrator of the Ciesp/Fiesp and FGV Chambers. Since 1986, he is Honorary Consul of Monaco in Brazil. Fo...

Décio Policastro is a lawyer recognized by Best Lawyers in the practice areas of Appellate Practice, Civil Rights Law and Litigation. Décio practices law in São Paulo, Brazil Best Lawyers has recognized Décio Policastro since 2021. 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 Décio Policastro is held by other lawyers.

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 ...

Hamilton Dias de Souza is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Hamilton practices law in São Paulo, Brazil Best Lawyers has recognized Hamilton Dias de Souza since 2010. 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 Hamilton Dias de Souza 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.