Mr. Zayas-Marxuach has developed a general civil and commercial litigation practice, in federal and state courts and arbitration, with emphasis on distribution and franchising, securities disputes, insurance, the Racketeer Influenced and Corrupt Organizations Act, class actions and products liability, particularly prescription drug litigation.
Additionally, Mr. Zayas-Marxuach regularly provides litigation and counseling services to individuals in estate and probate matters.
He joined McConnell Valdés in 2000 after serving as a judicial clerk to the Honorable José A. Andréu García, then Chief Justice of the Supreme Court of Puerto Rico, and the Honorable Salvador E. Casellas of the United States District Court for the District of Puerto Rico.
Some of his recent significant cases include:
- Representation of a leading energy trading company in a multi-billion dollar lawsuit.
- Representation of leading U.S. manufacturers in distribution litigation and disputes in Puerto Rico.
- Representation of a leading U.S. provider of excess and surplus lines insurance in the transition of several hundred legal claims upon exhaustion of its aggregate limit of liability on a municipal liability policy, and in complex settlement negotiations with the Puerto Rico Treasury Department related to such policy.
- Representation of insurers in a purported class action under the Racketeer Influenced and Corrupt Organization (RICO) Act alleging underlying violations of Puerto Rico’s Compulsory Motor Vehicle Liability Insurance Act.
- Méndez Internet Management Services, Inc. v. Banco Santander de Puerto Rico, 631 F.3d 10 (1st Cir. 2010): Affirming dismissal, on summary judgment, of an action raising claims under the RICO Act, the Sherman Antitrust Act, the Bank Holding Company Act and Puerto Rico’s general tort statute.
- Sánchez v. Triple-S Management Corp., 492 F.3d 1 (1st Cir. 2007): Affirming dismissal, on summary judgment, of a purported class action under the RICO Act.
- Calderón-Serra v. Wilmington Trust Co., 2011 WL 5335395 D.Puerto Rico 2011): Dismissing state law causes of action for civil fraud and breach of fiduciary duty in connection with a securities transaction.
- Nikitine v. Wilmington Trust Co., 715 F.3d 388 (1st Cir. 2013) & Calderón-Serra v. Wilmington Trust Co., 715 F.3d 14 (1st Cir. 2013): Affirming dismissal of state law claims for civil fraud and breach of fiduciary duty in connection with securities transactions.
News & Publications
- McV NewsAugust 21, 2019
- U.S. District Court Issues Sixth Amended Order Regarding Continuation of Civil and Criminal ProceedingsAn McV Litigation AlertJanuary 8, 2021
- An McV Insurance Practice Team AlertAugust 28, 2020
- An McV Litigation AlertAugust 17, 2020
- An McV Litigation AlertJuly 20, 2020
- An McV Insurance Practice Team AlertJuly 17, 2020
- An McV Corporate AlertJuly 10, 2020
- An McV Corporate AlertJuly 10, 2020
- PR Supreme Court Further Extends Deadlines for Judicial Filings, Provides New Deadline for Service of ProcessAn McV Litigation AlertMay 26, 2020
- An McV Litigation AlertMay 21, 2020
- McV Litigation AlertMay 6, 2020
- An McV Litigation AlertApril 14, 2020
- An McV Litigation AlertApril 1, 2020
- An McV Litigation AlertMarch 27, 2020
- An McV Litigation AlertMarch 26, 2020
- An McV Insurance AlertMarch 25, 2020
- An McV Litigation AlertMarch 20, 2020
- An McV Litigation AlertMarch 18, 2020
- An McV Litigation AlertMarch 17, 2020
- McV Litigation AlertMarch 16, 2020
- An McV Litigation and Real Estate AlertAugust 23, 2019
- An McV Litigation AlertJanuary 19, 2018
- An McV Litigation AlertJune 23, 2017
Member, Policy Committee
- 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., Summa Cum Laude, University of Puerto Rico
J.D., Magna Cum Laude, University of Puerto Rico Law School
Federal Bar Association