José A. Sosa-Lloréns

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.

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...

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).

Tatiana Leal-González is an associate in the San Juan, Puerto Rico, office of Jackson Lewis P.C. She focuses her practice in substantive and procedural aspects of labor and employment law litigation and has successfully defended claims against employers before federal and local court, and administrative agencies, involving complex allegations of wrongful termination, sexual harassment, retaliation, age and disability discrimination. Tatiana frequently provides legal advice and preventi...

He concentrates his practice in the representation of hospitality industry clients. He has structured joint ventures for investments in hospitality projects and has represented developers in all aspects of the financing of these projects, including the negotiation and execution of credit agreements, guaranty agreements and mezzanine financing arrangements. He has also represented developers in the negotiation and execution of hotel management agreements with some of the principal hotel brands...

Mr. Israel Fernández-Rodríguez, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, where he serves as an attorney specializing in labor and employment counseling and litigation, in addition to civil and commercial litigation. Prior to joining the firm, Mr. Fernández-Rodríguez was a senior associate in the Labor and Employment division of a major law firm in Puerto Rico, where he tenured for five years. A substantial part of Mr. Fernández-Rodríguez’ practice involves coun...

Mr. Muñiz represents clients in all phases of tax controversy and litigation matters, from tax audits and examinations through administrative appeals and court proceedings. He actively participates in multiple tax litigations representing clients on wide arrays of tax challenges, including: municipal license tax, income tax, personal property tax and construction excise tax deficiency procedures. He also has extensive experience representing taxpayers during the real property tax asses...

Idalmarie Lopez is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance & Compliance Practice. Idalmarie, 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 Idalmarie is held by other top lawyers in the same geographic and legal practice area.

Francisco A. Ojeda Diez is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law and Litigation. Francisco A., 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 Francisco A. is held by other top lawyers in the same geographic and legal practice area.

Mr. García-Díaz has over 20 years of experience in the private practice, providing counseling to clients in regulatory and compliance matters related to major federal and local environmental laws, such as CERCLA (Superfund), RCRA, Clean Air Act, Clean Water Act and the Oil Pollution Act. He represents clients before local and federal agencies with jurisdiction over Puerto Rico environmental matters, such as the United States Environmental Protection Agency, the United States Arm...