Mabel Sotomayor

Professional Overview

Mabel Sotomayor Hernández, Esq. is a leading attorney in administrative and appellate law, known for her strategic advocacy in complex government litigation and regulatory matters. As former Deputy Solicitor General of Puerto Rico, she directed civil appellate litigation before the Puerto Rico Supreme Court and Court of Appeals, overseeing over 40 attorneys and securing favorable outcomes in high-profile cases. At MZLS LLC, her practice spans administrative law—particularly bid protests, procurement disputes, and agency challenges—and appellate litigation involving trial court decisions across a range of substantive areas. With prior experience at McConnell Valdés and as Judicial Clerk to former Supreme Court Justice Edgardo Rivera García, Ms. Sotomayor offers clients exceptional legal analysis, persuasive writing, and deep institutional knowledge of Puerto Rico’s legal and regulatory systems.

Main Practice Areas

Appellate Litigation

Leads high-stakes appeals before the Puerto Rico Supreme Court and Court of Appeals, including matters arising from trial court rulings and administrative decisions. Combines strong analytical skills with persuasive written advocacy to deliver results in complex appellate cases.

Bid Protests & Procurement Disputes

Represents public and private entities in bid protests, award challenges, and procurement-related litigation. Brings strategic insight into competitive bidding processes, evaluation criteria, and defending or contesting agency determinations.

Administrative Law

Advises clients on regulatory compliance and agency decision challenges, including matters involving permitting, licensing, and enforcement actions. Offers deep knowledge of Puerto Rico’s administrative procedures and judicial review standards.

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