Fernando Lionel Berio Muñiz

Mr. Zayas-Marxuach has developed a commercial and general civil litigation practice in federal and state courts, with emphasis on distribution and franchising, insurance litigation, the Racketeer Influenced and Corrupt Organizations (RICO) Act, class actions and product liability, particularly prescription drug litigation. Additionally, Mr. Zayas-Marxuach regularly provides litigation and counseling services to individuals in estate and probate matters.

Gilberto Gutiérrez-Teissonniere is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Gilberto, 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 Gilberto is held by other top lawyers in the same geographic and legal practice area.

Alexandra C. Casellas-Cabrera is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Alexandra C., 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 Alexandra C. is held by other top lawyers in the same geographic and legal practice area.

Leslie Y. Flores-Rodríguez is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Litigation. Leslie Y., who practices law in San Juan, Puerto Rico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leslie Y. is held by other top lawyers in the same geographic and legal practice area.

Alejandro J. García Carballo is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation. Alejandro J., 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 Alejandro J. is held by other top lawyers in the same geographic and legal practice area.

Ricardo Muñiz is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Ricardo, 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 Ricardo is held by other top lawyers in the same geographic and legal practice area.

Jorge L. Covas-Mendoza is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Jorge L., who practices law in San Juan, Puerto Rico, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jorge L. is held by other top lawyers in the same geographic and legal practice area.

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.

She concentrates her practice in intellectual property and commercial litigation cases. Ms. Peñagarícano was part of the State Department Committee that drafted the new Trademarks Act of Puerto Rico and the Regulation for the Registration of Trademarks in Puerto Rico. She was the President of the Intellectual Property Committee of the PR Bar Association and, under her presidency, the Committee drafted the Right of Publicity bill, the Trade Secrets bill, and the Moral Rights bill...

Mayra Cristina Artiles Fonseca is an experienced attorney in the Corporate and Commercial Practice Group where she has successfully represented clients in a wide array of commercial and corporate transactions and disputes. Having also litigation expertise, Mayra provides comprehensive counsel to companies of all sizes on various corporate matters (from both a transactions and dispute resolution approach), helping them navigate complex legal landscapes with confidence and strategic insight. Ma...