Antonio Pietrantoni

Mrs. Carballo Chairs McConnell Valdés' Tax Practice Group. She focuses her practice on complex corporate tax matters, including startup operations, inbound and outbound corporate reorganizations, acquisitions, financings, exit strategies, legislative affairs, tax incentives and exemptions, and competent authority proceedings between the Puerto Rico Treasury Department and the Internal Revenue Service. A substantial part of her practice is devoted to tax minimization strategies through ...

Denisse Ortiz-Torres is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Denisse, 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 Denisse is held by other top lawyers in the same geographic and legal practice area.

Héctor Lebrón-González is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Héctor, 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 Héctor 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.

Ms. López del Valle is an Income Member in the Litigation Practice Group. Her primary practice areas include general civil litigation and arbitration, with an emphasis on Securities Arbitration and Intellectual Property. https://www.mcvpr.com/attorneys-Sonia-Lopez

Mr. Juan J. Casillas-Ayala, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, where he specializes in Labor & Employment and Commercial Litigation. He was a shareholder in the Labor and Employment division of a major law firm in Puerto Rico, where he further sharpened his litigation skills during his 11 years tenure at the firm. Prior to this, he served as law clerk at the Court of Appeals with now Supreme Court Justice Rafael Martínez-Torres and subsequently at the Supreme Co...

Manuel handles complex, high-profile disputes. He has successfully tried multiple cases in federal and state courts, as well as in arbitration proceedings and administrative forums. He also has successfully argued or briefed multiple cases before the First Circuit Court of Appeals, the Puerto Rico Supreme Court, and the Puerto Rico Court of Appeals. Manuel regularly lectures on the Federal Rules of Evidence, and has written multiple articles on evidence, and on the Puerto Rico Dealer and Fran...

Mr. Luis F. Llach-Zúñiga, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, with more than 13 years counseling and representing multinational and local companies on diverse matters, ranging from employment-related concerns and lawsuits, to handling and litigating complex tort, personal injury and premises liability claims before the U.S. District Court for the District of Puerto Rico and local courts. Mr. Luis F. Llach-Zúñiga, Esq. has extensively counseled and successfully rep...

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

Eugenio J. Torres-Oyola is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Eugenio J., who practices law in San Juan, Puerto Rico, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eugenio J. is held by other top lawyers in the same geographic and legal practice area.