Juan Marqués-Díaz > McConnell Valdés LLC > San Juan, Puerto Rico > Lawyer Profile

McConnell Valdés LLC
270 MUÑOZ RIVERA AVENUE
HATO REY
SAN JUAN, 00918
Puerto Rico
Juan  Marqués-Díaz photo

Work Department

Litigation Practice Group

Position

Capital Member and Chairman, Litigation Practice Group. Leader, Alternative Dispute Resolution Practice Team and Co-Leader, Tax Litigation Practice Team

Career

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 constitutional issues before appellate courts, including the first ever live TV broadcast oral argument before the Puerto Rico Supreme Court, which resulted in a unanimous landmark decision in favor of the firm’s client. Brau et als. v. E.L.A. de Puerto Rico, 2014 TSPR 26 (2014).

By appointment of the Puerto Rico Supreme Court, Mr. Marqués-Díaz has been a member of the Puerto Rico Board of Bar Examiners since 1997.

Lawyer Rankings

Puerto Rico > Dispute resolution and bankruptcy

(Leading individuals)

Juan Marqués DíazMcConnell Valdés LLC

The powerhouse team McConnell Valdés LLC remains a market leader in litigation, employing the experience of its team in complex, high-value class action law suits. With specialised offerings in such areas as bankruptcy and tax, the group advises a client roster of major insurers, financial institutions and multinationals, including household names Johnson & Johnson, Best Buy, Merrill Lynch and AIG, across sectors ranging from real estate, retail, financial services and medical devices to healthcare and pharmaceuticals. Litigation practice chair Juan Marqués-Díaz has over 25 years of experience and specialises in tax disputes, administrative and constitutional law, and arbitration, and vice-chair Henry Freese is an expert in maritime and admiralty law. Other key figures include Arturo García-Solá, who handles franchise and distribution law matters and contractual disputes, and Isabel Torres‐Sastre, who handles securities and IP matters.