Guilherme Favaro Corvo Ribas

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...

Marina Gaensly Blattner holds a graduate and master’s degree in public law from the Universidade do Estado do Rio de Janeiro (UERJ) and a LL.M from the London School of Economics and Political Sciences (LSE). She was a consultant member of the National Commission for Constitutional Studies of the Federal Council of the OAB. She is also a member of the São Paulo Lawyers Institute (IASP).

Fernando Novis is a top attorney recognized by Best Lawyers in the practice areas of Arbitration and Litigation. Fernando, who practices law in Brazil, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fernando is held by other top lawyers in the same geographic and legal practice areas. Fernando has over 16 years' experience of representing Brazilian and foreign clients in Civil, Corporate, Commercial, Regulator...

O Sr. Lopes tem 30 anos de experiência em lidar com disputas empresariais e é reconhecido por publicações especializadas nacionais e internacionais como um dos mais importantes advogados brasileiros. Atuou em casos complexos de arbitragem e contencioso judicial, moldando negócios nas áreas de infraestrutura, serviços financeiros, direito societário, reestruturação de dívidas e contratos comerciais. Segundo o The Legal...

Priscila Regina is a junior partner at the firm. She specialises in tax litigation and consultation, working closely with Fernando Loeser. Priscila has experience handling direct and indirect taxation matters in all court levels, including administrative and judicial cases. Some of the sectors her clientele comes from are the cosmetics, food and beverage and heavy industry. Priscila has been recognized since 2020 by Best Lawyers Brazil as a benchmark in the field of tax professionals. In addi...

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.

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.

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...

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

Mariana Tavares Antunes holds a bachelor’s degree in law from the Pontifical Catholic University of São Paulo (PUC-SP) and is a member of the São Paulo Lawyers Institute (IASP). She attended the Advanced Mediation Workshop: Mediating Complex Disputes, of the Harvard Negotiation Institute (HNI), in 2017.