María Luisa Fuster Zalduondo

He is Vice-Chair of McConnelll Valdés' Labor & Employment Law Practice Group and leader of the Labor Relations Practice Team. Mr. Rivera-Arce is an accomplished labor and employment law attorney with a record of outstanding results for employers, including multinational companies and domestic industry leaders. His practice concentrates on diverse topics, including wrongful termination, employment discrimination, labor unions, wages and hours, retaliation, sexual harassment, violati...

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...

Oreste R. Ramos is a lawyer recognized by Best Lawyers in the practice areas of Arbitration and Mediation, Bet-the-Company Litigation, Intellectual Property Law, Litigation and Product Liability Litigation. Oreste R. practices law in San Juan, Puerto Rico Best Lawyers has recognized Oreste R. Ramos since 2018. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which...

Ms. Toro has developed a general corporate tax practice with emphasis in employee benefits, income tax, tax incentives, property taxes and municipal license tax. She also possesses experience in the litigation of tax controversies before the Puerto Rico courts, as well as in governmental and legislative affairs regarding labor issues within the public sector. As an employee benefits' attorney, she provides counseling to clients on the qualification and administration of Puerto Rico and U.S. r...

Ricardo Casellas-Santana is a lawyer recognized by Best Lawyers in the practice area of Competition / Antitrust Law. Ricardo practices law in San Juan, Puerto Rico Best Lawyers has recognized Ricardo Casellas-Santana since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ricardo Casellas-Santana is held by other lawyers.

Alejandro J. García Carballo is a lawyer recognized by Best Lawyers in the practice areas of Insurance Law and Litigation. Alejandro J. practices law in San Juan, Puerto Rico Best Lawyers has recognized Alejandro J. García Carballo since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alejandro J. García Carballo is held by other lawyers.

Melissa Medina is a lawyer recognized by Best Lawyers in the practice area of Corporate and M&A Law. Melissa practices law in San Juan, Puerto Rico Best Lawyers has recognized Melissa Medina since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Melissa Medina is held by other lawyers.

Antonio L. Collazo-Bennazar is a lawyer recognized by Best Lawyers in the practice areas of Energy Law and Land Use and Zoning Law. Antonio L. practices law in San Juan, Puerto Rico Best Lawyers has recognized Antonio L. Collazo-Bennazar since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Antonio L. Collazo-Bennazar is held by other lawyers.

David Rivé-Power is a lawyer recognized by Best Lawyers in the practice areas of Administrative Law and Health Care Law. David practices law in San Juan, Puerto Rico Best Lawyers has recognized David Rivé-Power since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David Rivé-Power is held by other lawyers.

Mrs. Arrieta-Rivera's practice includes general civil and commercial litigation with emphasis on tax disputes and tax litigation, complex class actions, complex litigation, tort law, healthcare facility liability, and petroleum industry regulatory matters as well as collections cases. She represents clients before both state and federal court at trial and appellate levels and has worked on the defense of several high-risk cases in which she has assisted clients in obtaining favorable rulings ...