Rental Selection: 80% of Problems Avoidable with Rigorous Screening
Investment expert Martín says 80% of tenant problems are avoidable with proper screening. Key metric: income must be 3x rent. Essential for landlords and invest
80% of tenant problems can be avoided with a rigorous screening process before signing the lease.
Spain's rental market has become a minefield for landlords and tenants alike.
Martín, who prefers a low profile but whose advice is followed by thousands of investors, argues that most rental headaches can be prevented before…
Spain's rental market has become a minefield for landlords and tenants alike. With demand outstripping supply and prices rising, finding the right tenant is more critical than ever. Defaults and legal disputes have surged in recent years, eroding profitability for many investors. In this context, the words of Martín, a renowned real estate investment expert, resonate strongly: "80% of tenant problems can be solved with a good screening process." This claim is not mere opinion but the result of years of experience and market data analysis.
The Big Picture
Martín, who prefers a low profile but whose advice is followed by thousands of investors, argues that most rental headaches can be prevented before the contract is signed. "80% of tenant problems can be solved with a good screening process," he states. This claim is especially relevant in a context where defaults and legal disputes have surged. According to data from the General Council of the Judiciary, evictions for non-payment of rent increased by 12% in 2025 compared to the previous year, and forecasts for 2026 point to a similar trend.
modern apartment building with balconies
A good tenant must not only pay on time but also care for the property and maintain a stable relationship, Martín explains. A bad choice, on the other hand, can lead to "thousands of euros and months of headaches," especially with unpaid rent, damage, or legal issues. In a market where average rent exceeds €900 per month in major cities, the financial risk is substantial. A defaulting tenant can cause losses equivalent to six months' rent or more, including legal and repair costs.
“80% of tenant problems can be avoided with a rigorous screening process before signing the lease.”
The key, according to Martín, lies in prevention. "Investing time in selecting the tenant is the best investment you can make," he says. And it's not just about asking for pay stubs, but a comprehensive process that includes income verification, credit history, employment and personal references, and a face-to-face interview. "Never rent without meeting the tenant in person," he warns. A face-to-face interview reveals cues that forms miss: attitude, punctuality, communication style. These details make a difference.
By the Numbers
By the Numbers
Minimum income: The tenant's net salary must be at least three times the rent. For a €700 rent, that means €2,100 net monthly income. This rule, widely used in the industry, ensures the tenant has enough margin to cover the payment even in case of unforeseen events.
Recommended deposit: At least two months' rent as additional security. Although the law requires one month, Martín recommends demanding two to cover potential damages or initial defaults.
Success rate: Proper screening can eliminate 80% of potential problems, including non-payment, property damage, and legal disputes.
Safest profile: An indefinite contract with a completed probation period is the most reliable signal. Self-employed workers must demonstrate stable income through tax returns from at least two years.
bar chart showing income vs rent
Additionally, Martín recommends checking delinquent registries like ASNEF or RAI to detect past defaults. "If the tenant has previous debts, it's a red flag," he explains. He also suggests requesting references from previous landlords, though he warns these may be biased. Therefore, combining multiple information sources is key.
Why It Matters
Martín's insight comes at a critical time for Spain's rental market. Short supply and rising prices have pushed many landlords to rent without adequate safeguards, increasing exposure to problematic tenants. Defaults can cause losses of thousands of euros and eviction processes that drag on for months. According to INE data, the average rental price in Spain has risen 18% in the last three years, while the supply of rental housing has decreased by 10% in the same period. This pressure has led many landlords to accept tenants without proper verification, often with disastrous results.
For real estate investors, poor tenant selection not only affects cash flow but can also depreciate the asset's value. Properties with illegal occupants or troublesome tenants lose market appeal. An extreme case is squatting, which can require months of legal procedures to recover the property. Conversely, solvent tenants benefit from more stable relationships and better negotiated terms, such as contract renewals or property improvements.
The regulatory context also plays a role. The 2023 Housing Law introduced rent caps in stressed areas, reducing profitability for some investors. In this environment, minimizing default risk becomes even more important. "You can't control the market, but you can control who you rent to," Martín summarizes.
What This Means For You
What This Means For You
If you're a landlord or investor, these steps are essential to minimize risk:
1Verify income: Demand pay stubs showing net income at least 3x the rent. Don't accept verbal claims. For self-employed, request the last two tax returns and bank statements.
2Check credit history: Consult delinquent registries like ASNEF to detect past defaults. You can also request a risk report from specialized companies.
3Meet the tenant in person: "Never rent without meeting the tenant in person," Martín warns. A face-to-face interview reveals cues that forms miss. Observe punctuality, attitude, and communication style.
4Strengthen protection: Require a two-month deposit, get non-payment insurance, and consider squatter insurance. These policies cover everything from non-payment to intentional damage and legal costs.
5Draft a solid contract: Include clear clauses on obligations, rights, and resolution scenarios. It's advisable to have a specialized lawyer review the contract.
handshake between landlord and tenant
Additionally, consider using digital screening platforms that integrate income verification, background checks, and references. These tools save time and reduce the risk of human error. Some even offer rental guarantees, assuming the risk of non-payment in exchange for a fee.
What To Watch Next
The rental market will remain tight until supply recovers. New housing policies, such as rent caps in stressed areas, could shift dynamics. Landlords should monitor legislative changes affecting eviction timelines or contract terms. For example, a possible extension of protection periods against evictions for vulnerable tenants could further lengthen processes.
Digital screening platforms that integrate income verification and background checks will gain traction. Investors who adopt these tools will have a competitive edge. A rise in demand for non-payment and squatter insurance is also expected, in response to increasing defaults.
Another factor to watch is the evolution of interest rates. If the ECB maintains high rates, financing for buying homes will be more expensive, potentially slowing investment in new rental properties and keeping supply tight. In this scenario, tenant selection becomes even more critical.
The Bottom Line
The Bottom Line
The key to a successful rental lies in prevention. A rigorous screening process—with income verification, credit checks, and personal interviews—can drastically reduce problems. As Martín sums up, "investing time in selecting the tenant is the best investment you can make." In an increasingly complex market, due diligence is the best insurance. It's not just about avoiding losses, but building stable, profitable long-term relationships. Investors who adopt these practices will not only protect their assets but also contribute to a healthier, more professional rental market.
