Juan Marqués

McConnell Valdés LLC

Juan A. Marqués-Díaz is attorney of McConnell Valdés LLC. 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, and land use litigation.

Prior to joining the firm, Mr. Marqués-Díaz clerked for the Hon. José A. Andréu García, Chief Justice of the Supreme Court of Puerto Rico, and also served as Special Aide to Chief Justice Andréu García. While in law school he served as Associate Editor of the University of Puerto Rico Law Review.

He frequently writes and lectures on alternative methods of dispute resolution.

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.


  • Commonwealth of Puerto Rico
  • U.S. District Court District of Puerto Rico
  • U.S. Court of Appeals 1st Circuit
  • U.S. Supreme Court


  • B.A., University of Notre Dame, 1988
  • J.D., University of Puerto Rico Law School, 1991
  • LL.M., Harvard Law School, 1994


  • Puerto Rico Bar Association


Rate : $$$

What types of cases Attorney Juan Marqués & McConnell Valdés LLC can handle?
McConnell Valdés LLC can handle cases related to laws concerning Mediation, Litigation, Criminal Defense, Class Action, Bankruptcy, White Collar Crime, Government, Energy Utilities & Environmental. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is McConnell Valdés LLC located?
McConnell Valdés LLC is located at 270 Av. Luis Muñoz Rivera, San Juan, 00918, Puerto Rico. You can reach out to McConnell Valdés LLC using their phone line 787.250.2619. You can also check their website mcvpr.com or email them at [email protected].
How much would it cost to hire McConnell Valdés LLC?
Juan Marqués lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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McConnell Valdés LLC
Avenida Luis Muñoz Rivera 270
San Juan 00918 San Juan PR
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