Companies operating in Puerto Rico face a familiar math problem: enough legal work to need dedicated counsel, without the volume that justifies a full in-house department. Maceira Zayas (MZLS) fills that gap as outside general counsel: a standing relationship that covers contracts, compliance, employment matters, governance, and the daily questions that never justify a new engagement letter. The result is operational: decisions stop waiting on legal, spend becomes predictable, and risk gets handled before it becomes a dispute.

The model is the full role, delivered fractionally, and the practice is led by Francisco González de la Matta. The firm works inside the client's business: present in the decisions that need legal judgment, managing the recurring legal stream, bringing in specialist counsel when a matter demands it, and supporting in-house teams that need added depth rather than replacement. When the engagement calls for it, the firm places its attorneys inside the client's team on secondment, full or part time, for a defined term. The firm has run this model inside eight companies across power generation, waste services, technology, ticketing, disaster recovery consulting, media, and research.

What separates the firm's version of this service is what stands behind it. When an outside GC client's matter turns federal, a contracting dispute, an FCC or FERC question, a cybersecurity obligation, a federal grant condition, the same firm handles it through its regulatory, government contracts, technology, and government affairs practices, with offices in San Juan and Washington, D.C. Clients keep one relationship. The firm covers both jurisdictions it takes to operate in Puerto Rico.