Mariana Chapei

Foreign Senior Lawyer

Project Asst.

Mariana is a senior foreign lawyer at the Oslo office, dual-licensed by the New York Bar Association and the Brazilian Bar Association. A member of the technology group, Chapei works mainly with commercial law and contracts, financial regulation and its intersection with technology (fintech), and data privacy law.

Prior to joining SANDS, Chapei has worked as an in-house corporate, commercial and product counsel for PayPal, in its San Jose, CA headquarters, and for Synapse, a banking-as-a-service company, where she had the opportunity to work with several raising and established fintech companies. In Brazil, Chapei has worked at the Brazilian Stock and Commodities Exchange and two boutique law firms.

Chapei has extensive experience in negotiating and drafting international transaction agreements and providing regulatory guidance in connection with the launch and maintenance of diverse products, ensuring compliance with banking, financial, health sciences, and consumer regulation.

Chapei assists SANDS' clients with ongoing corporate, commercial, regulatory, and technology matters, focusing on commercial contracts and agreements, licensing and terms of service, privacy program and policies, regulatory review of products and registration of companies with regulatory agencies, and international mergers and acquisitions.

Expertise areas


SANDS Advokatfirma DA

Foreign Senior Lawyer

Synapse Financial Technologies, Inc. San Francisco, CA

Head of Products Legal

Paypal, Inc., San Jose, CA

Legal Counsel

BM&FBOVESPA Supervisão de Mercado - BSM, São Paulo, Brazil

Senior Legal Counsel

Ferrari & Magalhães Advogados, São Paulo, Brazil


Satiro & Ruiz Advogados, São Paulo, Brazil


Stanford Law School, Stanford, CA

LL.M., Corporate Governance and Practice

Instituto de Ensino e Pesquisa - Insper, São Paulo, Brazil

LL.M., Financial and Capital Markets

Escola De Economia De São Paulo, Fundação Getulio Vargas, São Paulo, Brazil

Master in Financial Economics

Faculdade de Direito Da Universidade de São Paulo, São Paulo, Brazil

Bachelor of Laws (J.D. equivalent)

Competition between Stock Exchanges: Benefits and Challenges of Market Fragmentation

Business Law Applied Studies: Financial and Capital Markets, São Paulo, SP: Almedina.