Carlos Fernando Siqueira Castro

• Foreign Capital
• Civil Law and Contracts
• Financing and Banking Law
• Mergers and Acquisitions
• Capital Markets
• Real Estate Transactions
• International Transactions and Contracts
• Corporate Restructuring and Bankruptcy
• Corporate Law
• Succession, Estate Planning, and Related Matter

• Graduated from the State University of Rio de Janeiro (UERJ) in 1998
• Postgraduate degree in Law, Economics, and Business from Fundação Getulio Vargas (FGV/RJ) in 2001
• Master of Laws (LL.M.) from the University of Chicago Law School, USA, in 2006

• Former State Counselor of the Brazilian Bar Association, Rio de Janeiro Chapter
• Member of the Brazilian Bar Association
• Member of the International Bar Association
• Member of the American Bar Association
• Member of the São Paulo State Lawyers Association

CEO at Siqueira Castro and partner with a solid background in Corporate Law, widely recognized both nationally and internationally for his expertise in Commercial Contracts, Financial Transactions, Corporate Law, Mergers and Acquisitions, Banking Law, and Telecommunications. He has been ranked among the most admired lawyers in Brazil by leading legal directories such as Análise Advocacia 500, Chambers Latin America, Chambers Global, The Legal 500, IFLR 1000, Leaders League, and LACCA Approved, and was a Client Choice Awards winner in the M&A category.​

He is also highly regarded by companies across key industries such as Energy, Financial Services, Telecommunications, Mining, Oil & Gas, Construction, and Food & Beverage, among others.​

He holds a Law degree from the State University of Rio de Janeiro (UERJ), a postgraduate degree in Economic and Business Law from FGV/RJ, and an LL.M. from the University of Chicago Law School (USA).​

He is a former State Counselor of the Brazilian Bar Association – Rio de Janeiro Chapter, and a member of the Brazilian Bar Association (OAB), the International Bar Association, the American Bar Association, and the São Paulo Lawyers Association.

Elected one of the most admired lawyers in Brazil by Análise Advocacia in the areas of Commercial Contracts, Financial Transactions, and Corporate Law, as well as in the economic sectors of Sugar & Ethanol, Food & Beverage, Automotive & Auto Parts, Retail, Communications, Education, Electronics, Electric Power, Financial, Pension Funds, Hospitality and Tourism, Machinery and Equipment, Mining and Steel Industry, Oil & Gas, Specialized Services, Telecommunications, Banking, Construction and Engineering (multiple years).

Recognized by The Legal 500 Latin America as one of the best lawyers in Brazil in the areas of Banking and Finance, Corporate and M&A, and Real Estate.

Highlighted by IFLR 1000 in the areas of Banking, Antitrust, Financial, and Corporate Law.

Ranked among the leading lawyers in the country by Chambers Latin America in the areas of Corporate/M&A and Telecommunications & Technology, and by Chambers Global in Corporate/M&A.

Awarded by Leaders League as one of the top lawyers in the areas of Large-Cap Mergers & Acquisitions, Transactions, Corporate Law, and Capital Markets (Equity and Debt).

Recognized by LACCA Approved as a standout in Corporate/M&A.

Winner of the Client Choice Awards – International Law Office (ILO) in the Mergers and Acquisitions category (Brazil).

Ranked 16th in the Top Decision Makers: Managing Partners list by Decisor Brasil (2023).

• CASTRO, Carlos Fernando Siqueira. Reflections on the New Times and the Legal Profession in Brazil (Part 3). São Paulo, February 3, 2022.
• CASTRO, Carlos Fernando Siqueira. Reflections on the New Times and the Legal Profession in Brazil (Part 2). São Paulo, January 12, 2022.
• CASTRO, Carlos Fernando Siqueira. Reflections on the New Times and the Legal Profession in Brazil (Part 1). São Paulo, January 4, 2022.