Co-Ownership

The Legal Foundation of Your Co-Ownership: How the Fideicomiso Works

June 3, 2026
Filial en mercados nuevos

When considering a vacation property in Mexico, one of the first questions is often legal: how are my rights documented and protected? In Key Fractional’s co-ownership model, the answer begins with the fideicomiso, a Mexican bank trust.

Fideicomisos are widely associated with international buyers purchasing residential property in Mexico’s restricted coastal zones. In the Key Fractional model, the trust also provides the legal structure for the property and the rights attached to each fraction.

The bank acts as trustee and holds legal title to the property. Each buyer is named as a beneficiary of the trust and receives clearly documented rights to use and enjoy the home during the periods assigned to their fraction. The trust agreement also establishes the rules governing transfers and the relationship among beneficiaries.

What protection does the fideicomiso provide?

  • Clearly documented rights: Your rights as a beneficiary—including the right to use and enjoy the home—are set out in the trust agreement.

  • Transfer and succession: Subject to the trust agreement and applicable law, your beneficiary rights may be sold, transferred, or passed on to your family.

  • Long-term structure: Fideicomisos used for residential property in Mexico’s restricted zone are generally authorized for terms of up to 50 years and may be renewed in accordance with applicable requirements.

The fideicomiso gives every buyer a defined legal position as a beneficiary of the property trust. This allows you to understand exactly what you are acquiring and how your rights are documented within the trust.