The powerhouse team at McConnell Valdés LLC remains a market leader, utilising the bench strength of its experienced team to advise major insurers, financial institutions and multinationals involved in complex, high-value claims and class action cases. The firm’s active client roster includes household names Johnson & Johnson, Best Buy, AIG and Merrill Lynch, and spans sectors ranging from oil and gas, healthcare, hospitality and real estate to pharmaceuticals, retail, financial services and medical devices. The practice is headed by litigation chair Juan Marqués-Díaz, who brings over 25 years of experience to arbitration, tax disputes and matters involving administrative and constitutional law, and group vice-chair Henry Freese, who brings expertise to maritime and admiralty cases, construction disputes and insurance defence work. Other key figures include managing director Arturo García-Solá, who specialises in contractual disputes and who, along with Eduardo Zayas-Marxuach, handles franchise and distribution law matters; Alejandro Cepeda-Díaz, who represents clients in securities arbitration and environmental litigation; and counsel Isabel Torres‐Sastre, who delivers strength in litigation related to intellectual property, data security, and media and entertainment.
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Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
‘Notably, the litigation team has excelled in class action defences, constitutional issues and appellate proceedings, among others. McConnell’s litigation team is highly skilled and versatile, providing effective solutions and pragmatic advice.’
‘Juan Marqués-Díaz is a seasoned litigator with a solid constitutional law practice. Known for his exceptional skills in handling complex litigations, he consistently delivers personalised and prompt attention to the legal matters assigned.'
'Isabel Torres-Sastre stands out as a highly efficient and responsive legal professional with good litigation and drafting skills.’
Key clients
- AIG
- AmeriNational Community Services
- Banco Popular de Puerto Rico
- Best Buy Coco Condominium 1
- Destilería Serrallés
- Johnson & Johnson Lilly del Caribe
- MMM Healthcare
- McKesson Corporation
- Medtronic
- Office of the Courts Administration, Puerto Rico Judicial Branch
Work highlights
Representing Community Development Venture Capital Alliance, a non-for profit organisation that provides equity capital to businesses in underinvested markets, in a shareholder dispute pending before the United States District Court for the District of Puerto Rico.
Representing AIG in an action filed by the Puerto Rico Electric Power Authority against an international contractor (Abengoa) and the bond company (AIG) in relation to a construction project in Puerto Rico.
Defending Coco Condominium 1 in two consumer class actions and one complaint under the Puerto Rican consumer class action law.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Juan Marqués-Díaz; Henry Freese