Cancún
Principal Office · Federal & State Courts · Hotel ZoneMain operating base. Litigation before the Superior Court of Justice of Quintana Roo, Federal District Courts, and Collegiate Circuit Courts of the 15th Circuit.
Our Story
A legacy built over four generations. A firm shaped by Mexico's most consequential legal, diplomatic, and commercial history.
Founded · 1943
A Firm With Deep Roots
IBG Legal was founded in Cancún in 2005, at the precise moment the Mexican Caribbean began its transformation into an institutional investment destination. Behind the firm is a family lineage that spans centuries of legal and political history. David Lawrence Gregg was the United States Commissioner who negotiated the annexation treaty of the Kingdom of Hawaii with King Kamehameha III in 1854. A branch of the family is connected to Ignacio Allende, a central figure of Mexican independence. Another traces back to a Catalan ancestor who stood against oppressive regimes in Europe before crossing the Atlantic. In Mexico City, Juan F. Gregg practiced labor law in the Historic Center and Patricia Gregg built a practice in bioethics and regulatory law, moving through Roma Norte, Las Lomas de Chapultepec, and Bosques de las Lomas. IBG Legal did not arrive in Cancún to improvise. It arrived with generations of accumulated family practice and the clarity of knowing exactly where it comes from.
The Mexican Caribbean · A New Frontier
Building the Legal Infrastructure of the Riviera Maya
When Cancún began attracting international capital in the 1980s, the Gregg family lawyers were already working the Mexican market. IBG Legal arrived in Quintana Roo in 2005 and has since structured fideicomisos in the restricted zone, regularized ejidal land that became hotel developments, litigated the first coastal environmental disputes, and built the foreign investment structures that opened the Mexican Caribbean to institutional markets. That transactional record, built deal by deal and case by case, is what distinguishes IBG Legal from any firm that arrived afterward.
Today · Precision at Scale
Where Law Meets Investment
IBG Legal operates today at the intersection of high-stakes real estate transactions, complex litigation, and international investment, with offices in Quintana Roo, Mexico City, and Querétaro. The firm combines modern research methodology and technology-assisted due diligence with the territorial knowledge and institutional relationships that only generations of continuous practice can build. The same firm that structured your acquisition can defend it in litigation: a critical advantage that very few firms in Mexico can credibly offer.
Conservation · Beyond the Practice of Law
Committed to the Caribbean Ecosystem
IBG Legal's commitment to Mexico's Caribbean coast extends beyond the courtroom. The firm actively collaborates with Saving Our Sharks Foundation on marine conservation initiatives in the Caribbean, linking its environmental law practice to the preservation of the ecosystem that underpins the region's economy, the same coast on which its clients invest and its lawyers live. This is not performative philanthropy: it is consistency between the environmental law we practice and the territory we protect. Learn more at savingoursharksfoundation.org
