Beyond the Fideicomiso: The Legal Structures Sophisticated Buyers Use in Los Cabos

Every foreign buyer in Los Cabos needs a fideicomiso. This is the legal minimum, not the ceiling. For the buyer acquiring a property as a personal second home below USD 1.5 million, the standard bank trust with a bank like BBVA or Scotiabank is indeed the most efficient structure. But as soon as the purchase exceeds that threshold — in price, in complexity, or in intent (investment vs. residence vs. family estate) — the legal conversation becomes substantially more sophisticated.

The Sociedad Anónima Promotora de Inversión (SAPI) is the preferred vehicle for buyers acquiring one or more properties with the intention of generating returns — whether through short-term vacation rental, long-term residential rental, or eventual appreciation and sale. The SAPI can directly hold real property in Mexico through a legal entity, eliminates the annual bank trust fee, allows multiple partners with different ownership percentages, and facilitates the deduction of operating expenses against ISR (income tax). For a family office or a buyer acquiring two or more properties simultaneously, the SAPI significantly reduces administrative burden and optimizes the tax position.

In the elevated interest rate environment of 2024-2025, a previously underutilized structure has emerged with force: the guaranteed trust with seller financing. In these transactions — which the mid-2025 market report identifies as one of the three dominant buyer strategies of the moment — the seller acts as lender, structuring an amortization schedule with 50-60% down payment and the balance financed by the seller at rates negotiated directly between parties. For the buyer, this eliminates dependence on traditional Mexican mortgage banking, which remains costly and inflexible for non-residents.

The institutional buyer — family office, investment fund, company with multiple properties in different jurisdictions — typically prefers a two-layer structure: an LLC or corporation in Delaware as the beneficiary of the Mexican trust. This architecture allows the Los Cabos property to fall under the corporate umbrella of the family or institutional holding company, simplifying accounting consolidation, reporting to shareholders or beneficiaries, and estate planning across multiple jurisdictions. The transfer of the asset to heirs can in many cases be accomplished through the transfer of ownership interests in the American entity, without needing to re-deed the Mexican property.

This is the point where most buyers — even the most sophisticated — make errors of omission. Mexico and the United States do not have a double-taxation treaty applicable to real estate in the same way. A common mistake is assuming that the buyer's American revocable trust automatically "covers" the property in Mexico. It does not. It is essential to designate beneficiaries within the Mexican fideicomiso and, ideally, to coordinate the structure with an attorney specializing in cross-border estate planning.

At Montealegre Luxury Homes, we actively coordinate with the finest legal firms specializing in international real estate in Los Cabos, Mexico City, and the major North American cities. The right purchase begins with the right structure.

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