Sandra Castillo > Mayora & Mayora, S.C. > Guatemala, Guatemala > Lawyer Profile

Mayora & Mayora, S.C.
15 CALLE, 1-04 ZONA 10, 3RD FLOOR

Work Department

Corporate, M&A, Banking, Finance, Civil




Sandra has been with the Firm for over a decade and is renowned for her expertise in business law and mergers and acquisitions. She handles the registration of numerous global business entities in Guatemala and the corporate restructuring of many well-known companies in the region. 

Sandra is consistently recognized for her legal skills, having been selected, most recently, by LACCA as the fourth ranked lawyer in Guatemala for corporate law and mergers and acquisitions.


Spanish, English


Guatemalan Bar Association


Sandra has received her law degree from Universidad Francisco Marroquín, the highest ranked university in the country, where she graduated cum laude. She also has an LLM from Pontificia Universidad Catolica de Chile with academic distinction.

Lawyer Rankings

Guatemala > Banking and finance

With offices in Guatemala, Honduras and El Salvador, Mayora & Mayora, S.C. is a popular choice of counsel for leading regional banks, as well as international financial institutions. The team has the expertise and resources to advise on a broad range of banking and finance matters, including debt issuances, debt restructuring, corporate finance, project finance and regulation, and has particular expertise in the real estate, energy, mining and infrastructure sectors. Sandra Castillo, whose expertise includes syndicated loans, corporate finance and debt refinancing, leads the practice with Claudia Pereira, who is noted for her experience in trusts and project financing. The team also includes María Fernanda Morales Pellecer, who was promoted to partner in April 2019 and specialises in banking regulation, and the highly regarded Eduardo Mayora.

Guatemala > Corporate/M&A

Having expanded its presence in Central America through the opening of offices in Honduras and El Salvador in 2016 and 2017, respectively, Mayora & Mayora, S.C. is highly experienced in cross-border M&A transactions in the region. The team also advises on corporate governance, particularly in relation to the rights of minority shareholders, the establishment of businesses and foreign entities, and corporate restructurings. The energy, pharmaceutical, food and beverage, and technology sectors are among its areas of strength. Practice heads Claudia Pereira and Sandra Castillo are particularly experienced in advising multinational clients, many of which are based in the US, Mexico and Europe. The team also includes well-regarded senior partners Eduardo Mayora and Rafael Briz, and senior associate María de la Concepción Villeda, who specialises in corporate governance.