Purchasing a property in San Luis Potosí without prior due diligence is one of the most costly mistakes an investor or individual can make. A thorough review process takes 2 to 4 weeks, but can prevent problems that last decades.
What Is Real Estate Due Diligence?
It is the comprehensive investigation process conducted before acquiring a property to identify any legal, tax, technical, or zoning contingency that could affect the property's value, use, or transfer. It is not a luxury — it is a necessity, especially in Mexico where the property registry system has significant backlogs.
Registry History Review
The first step is to obtain a certificate of existence or non-existence of encumbrances from the SLP Public Property Registry. This allows identification of:
- Active or expired mortgages not yet released
- Judicial attachments
- Easements not disclosed by the seller
- Pending succession disputes
- Unregistered rights assignments
Tax and Service Debts
Before signing any deed, verify:
- Property tax up to date (request a certificate of no debt from the municipality)
- No outstanding water utility debts (INTERAPAS in the urban area)
- Maintenance fees current, if applicable (condominiums or private subdivisions)
Property tax debts can transfer to the new owner if not settled before the deed is executed.
Land Use and Property Classification
The land use authorized by the municipality determines what the property can legally be used for. A property with residential zoning cannot be used commercially or industrially without a land use change permit, which can take months and is not always approved. Also verify whether the property is within any risk zone, protected natural area, or historical preservation polygon.
Technical Aspects That Cannot Be Overlooked
The legal review must be complemented by a physical inspection of the property by a certified expert: structural condition, electrical and plumbing systems, potential moisture or settlement issues, and measurement of actual vs. registered surface area. Discrepancies of more than 5% in surface area can cause problems at the time of deed execution.