When entering into a lease agreement, it is standard practice for landlords to require additional security to ensure the tenant’s compliance with its obligations.
In Mexico, the two most commonly used structures are the guarantor (fiador) and the joint and several obligor (obligado solidario). Although they are often used interchangeably in practice, their legal nature—and more importantly, their enforceability—differs significantly.
This distinction is not merely technical. It directly impacts the landlord’s ability to enforce the lease in the event of a breach.
The guarantor: accessory and conditional liability
A guarantor undertakes to answer for the tenant’s obligations in the event of default. However, this obligation is accessory in nature and therefore subject to legal limitations.
In practice:
- The landlord must typically pursue the tenant before proceeding against the guarantor.
- Guarantors are often required to evidence ownership of unencumbered real property as security.
- They may invoke statutory protections, including:
- Benefit of order (requiring prior action against the principal debtor).
- Benefit of excussion (requiring exhaustion of the tenant’s assets).
- Benefit of division (where multiple guarantors exist).
As a result, the guarantor’s liability is secondary, conditional, and frequently subject to procedural hurdles unless contractually waived.
The joint and several obligor: direct and immediate liability
By contrast, a joint and several obligor assumes liability equivalent to that of the tenant from the outset.
This implies that:
- The landlord may demand performance directly from the obligor, without first proceeding against the tenant.
- The obligation is primary and joint and several, not accessory.
- No specific asset backing is legally required.
- The obligor does not benefit from order, excussion, or division.
From an enforcement perspective, the joint and several obligor is treated as a co-debtor.
Why the distinction matters in practice
The difference becomes critical upon default:
- With a guarantor, enforcement may require additional procedural steps, often extending recovery timelines significantly.
- With a joint and several obligor, the landlord may act immediately and directly.
In commercial or high-value leases, this distinction often determines whether the security is effective—or merely symbolic.
Key considerations before signing
Before executing a lease agreement, it is essential to verify:
- Clear identification of the security structure
The contract must unambiguously define whether the party acts as guarantor or joint obligor. - Express waiver of legal benefits (where applicable)
In the case of guarantors, the waiver of order and excussion rights is often critical for enforceability. - Comprehensive scope of the guarantee
The guarantee should expressly cover not only rent, but also damages, penalties, maintenance obligations, and any ancillary liabilities.
A lease is a risk allocation instrument
A lease agreement is not a mere administrative document—it is a risk allocation tool.
The difference between a standard agreement and a strategically structured one typically becomes evident only when a breach occurs.
At Roqueñí Abogados, we advise landlords and tenants on the structuring, negotiation, and drafting of lease agreements, focusing on the provisions that determine enforceability when it matters most.
Because an effective guarantee is not improvised—it is built into the contract.