Maria A. Dominguez-Victoriano

Daniel Quiles-Pumarejo is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Daniel, 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 Daniel is held by other top lawyers in the same geographic and legal practice area.

Mr. Rodríguez, who joined the Firm in 1974, practices in the areas of tax exemption, general corporate and government contracts. He has negotiated and re-negotiated dozens of grants of tax exemption for companies owned by U.S., European and Puerto Rican entities, including Johnson & Johnson, Schering-Plough, Medtronic, Harvey Hubbell, Astra-Zeneca (U.K.), Aventis (France) and MOVA (Puerto Rico).

He specializes in cross border transactions, government affairs, and government procurement and contracting. His corporate practice has been focused primarily on insurance and banking regulatory issues and insurance M&A transactions, involving both insurance company and insurance brokerage asset purchase and stock purchase transactions. Mr. Ramirez has also been involved in the organization and authorization of insurers, including the incorporation and organization of the first domestic l...

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.

Juan Carlos Bou-Cardona is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. Juan Carlos, 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 Juan Carlos is held by other top lawyers in the same geographic and legal practice area.

Alfredo Alvarez-Ibáñez is a member in the Corporate Department. He has been with O’Neill & Borges since 1996. Alfredo’s practice is concentrated in various areas of commercial law and creditors’ rights, including real estate, commercial lending, secured transactions, asset-based finance, and complex out-of-court workouts and restructurings, representing both local and U.S.-based financial institutions and businesses. Alfredo’s practice also involves c...

Mr Casellas has over 25 years of experience in various corporate and financing matters, including project development and finance, commercial lending and structured finance, real estate and mergers and acquisitions. He has acted as counsel for various financial institutions in commercial lending and structured finance transactions. Some of his recent transactions include acting as counsel for Autopistas Metropolitanas de Puerto Rico, LLC in the financing of the PR-22 toll road concession, the...

Rosa M. Lázaro-San Miguel is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law, Employee Benefits Law and Insurance Law. Rosa M., who practices law in San Juan, Puerto Rico, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rosa M. is held by other top lawyers in the same geographic and legal practice area.

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 ...

Luis M. Morera is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law and Litigation. Luis M., who practices law in San Juan, Puerto Rico, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luis M. is held by other top lawyers in the same geographic and legal practice area.