Fernando Lionel Berio Muñiz

Anthony Maceira Zayas is an attorney at MZLS LLC whose practice focuses on Corporate and M&A Law. He advises businesses on corporate governance, mergers and acquisitions, and a wide range of transactional matters, working with clients in San Juan and throughout Puerto Rico. Anthony has been recognized by Best Lawyers in the practice area of Corporate and M&A Law since 2026. This recognition is based on a peer-review process that reflects feedback from other attorneys familiar with his...

Jerry Lucas Marrero is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Environmental Law and Land Use and Zoning Law. Jerry Lucas, who practices law in San Juan, Puerto Rico, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jerry Lucas is held by other top lawyers in the same geographic and legal practice area.

Angel Rey Seijo is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Angel, who practices law in San Juan, Puerto Rico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Angel is held by other top lawyers in the same geographic and legal practice area.

Mr. Marqués-Díaz chairs McConnell Valdés' Litigation Practice Group. His practice includes general civil and commercial litigation before the Puerto Rico and federal courts, concentrating in local appellate practice, constitutional, tax, consumer class action, administrative, insurance - including healthcare insurance litigation - and land use litigation. Mr. Marqués-Díaz has a solid constitutional law practice. He has argued many cases involving constitutio...

Javier Vázquez-Morales is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law and Energy Law. Javier, who practices law in San Juan, Puerto Rico, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Javier is held by other top lawyers in the same geographic and legal practice area.

Patricia M. Marvez-Valiente is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Patricia M., who practices law in San Juan, Puerto Rico, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patricia M. is held by other top lawyers in the same geographic and legal practice area.

Luis R. Pérez Giusti is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Luis R., who practices law in San Juan, Puerto Rico, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luis R. is held by other top lawyers in the same geographic and legal practice area.

Shiara Diloné-Fernández is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Shiara, who practices law in San Juan, Puerto Rico, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shiara is held by other top lawyers in the same geographic and legal practice area.

Andres Colberg is a Member of Estrella, LLC and he received his bachelor’s degree in Business Management from Fairfield University, Fairfield, Connecticut. He later received his Juris Doctor degree from Facultad de Derecho Eugenio María de Hostos, Mayaguez, Puerto Rico, where he graduated in the first class and was a member of A.N.E.D. (Asociación Nacional de Estudiantes de Derecho). After graduation, Mr. Colberg joined the Legislation Division of the Justice Department of...

Angel A. Morales-Lebrón is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Angel A., who practices law in San Juan, Puerto Rico, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Angel A. is held by other top lawyers in the same geographic and legal practice area.