Guillermo E. Zúñiga
Energy Partner, Corporate/M&A, Foreign Investment, Real Estate and Infrastructure
T. +506 4000 1141
gezuniga@ecija.com
LinkedIn
Guillermo is Managing Partner of the Real Estate and Urban Planning, Corporate, and Mergers & Acquisitions areas, as well as Co-Director of ECIJA Costa Rica’s Energy Law practice. With a professional career spanning over twenty-five years, he has focused his practice on advising foreign investment in both Costa Rica and Central America.
He leads multidisciplinary, cross-border teams in executing projects commissioned by multinational companies, known for his commitment and customer service reputation.
His corporate and M&A practice focuses on high-profile transactions involving multiple jurisdictions, participating in both due diligence investigations and the design of transaction structures, such as share purchases, mergers, spin-offs, asset buy-sell transactions, and other corporate vehicles.
Guillermo has extensive experience in renewable energy projects and is recognized as one of the top lawyers in this field in Costa Rica and Latin America. He has advised clients in their relations with government entities and private institutions, in the design, installation, and operation of renewable energy projects.
He has led the development of large commercial and residential projects in high-growth real estate areas, both in the Central Valley and on the Pacific coast of Costa Rica, designing structures that benefit both the development group and the end client. He specializes in condominium developments, both vertical and horizontal, as well as in the subdivision of large plots of land. His involvement includes due diligence investigations for purchasing future project lands, as well as the creation of schemes and investment vehicles to enable project development while obtaining all necessary regulatory approvals.
Guillermo serves as a member of various boards of directors, both of private companies and non-profit associations in the country.
He holds a Law Degree from the University of Costa Rica, an LL.M from Georgetown University, and a Bachelor’s in Economics from the University of Costa Rica. Guillermo is a member of the Costa Rican Bar Association, the National Directorate of Notaries, and the New York State Bar Association.
Guillermo speaks both English and Spanish.
“Guillermo E. Zúñiga is able to handle complex matters and is available to support on urgent issues.” Chambers, Latam 2025.
“Guillermo E. Zúñiga has consistently demonstrated professionalism, competence, promptness, and accuracy in all interactions.” Chambers, Latam 2025.
“Well-regarded partner and head of department Guillermo E. Zúñiga has experience assisting clients with the development of projects, negotiating sale and purchase agreements and restructuring real estate assets.” Chambers, Latam 2025.
“Guillermo E. Zúñiga, who has led the practice for over 25 years, and who brings strength to managing complex distribution schemes and advising overseas investors.” Legal 500, Latam 2025.
“The practice is headed by Guillermo E. Zúñiga, who brings decades of experience to assisting with complex real estate projects and transactions involving concessions in the Maritime Zone, protected areas, condominiums and luxury hotels.” Legal 500, Latam 2025.
“Guillermo E. Zúñiga of ECIJA has experience representing high-profile clients in corporate mandates within the Costa Rican market.” Chambers, Latam 2024.
“Guillermo E. Zúñiga is highly qualified and has a strong background in transactions and industry knowledge.” Legal 500 2024.
“What makes the firm stand out to us is its knowledge and experience in our sector, specifically in the case of Guillermo E. Zúñiga.” Legal 500 2023.
Real Estate and Urban Planning
Corporate/Mergers and Acquisitions
Energy and natural resources
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