You spent years building your San Diego investment portfolio. You’ve weathered the market cycles, managed the maintenance calls, and kept your units filled. But one of the biggest threats to your rental income isn’t vacancy rates or rising property taxes — it’s bad tenant placement. And in California, the consequences are brutal.
Evictions in San Diego can take 3–6 months and cost upward of $10,000 in legal fees, lost rent, and repairs. And yet, many landlords still rush through the screening process — or skip critical steps altogether — because they don’t know what they’re missing.
At The Mendes Company, we’ve managed over 1,200 units across San Diego County, and we’ve seen every type of tenant situation imaginable. Here are the five most common — and costly — tenant screening mistakes we see landlords make, and exactly what to do instead.
Mistake #1: Relying on a Credit Score Alone
A 700 credit score looks great on paper. But credit scores don’t tell you the whole story — and in San Diego’s competitive rental market, tenants know how to present well.
What a credit score doesn’t show you:
- A history of evictions (which don’t appear on all credit reports)
- Patterns of late rent payments hidden by revolving debt payoffs
- Debt-to-income ratios that make qualifying rent unaffordable
- Collections from previous landlords
The Fix: Pull a comprehensive screening report that includes credit history, eviction records, criminal background, and income verification — not just a score. In California, you must follow Fair Housing laws when applying screening criteria, so establish a written, consistent policy for every applicant.
We use a multi-layer screening process that checks income, rental history, and eviction records — not just credit. Our screening criteria are documented, consistent, and built to protect owners from costly placements. Learn how we handle leasing → |
Pro Tip from Mendes CompanyMistake #2: Skipping Rental History Verification
Calling a former landlord feels awkward. It takes time. And most applicants provide references who will obviously say something positive. So many landlords skip this step entirely — and it’s one of the most expensive shortcuts you can take.
The tenant who looks perfect on paper might have a history of:
- Paying rent 2 weeks late every single month
- Leaving properties in poor condition at move-out
- Violating lease terms like unauthorized occupants or pets
- Getting asked to leave “quietly” to avoid formal eviction
The Fix: Always call previous landlords — especially the one before the current one. (Current landlords sometimes give glowing references just to get a problem tenant out.) Ask specific questions: Did they pay on time? Would you rent to them again? How was the unit left at move-out? What was the reason for leaving?
In California, under AB 1482 and local rent control laws, documentation of tenant history is more important than ever. A tenant who has previously violated lease terms creates significant legal exposure.
Mistake #3: Applying Screening Criteria Inconsistently
This one doesn’t just cost money — it can cost you a fair housing lawsuit.
California has some of the most expansive fair housing protections in the country. Protected classes include not just race, religion, and national origin, but also source of income (Section 8 vouchers), immigration status, criminal history in some municipalities, and more.
If you make exceptions for one applicant — waiving an income requirement, overlook a low credit score, or approve someone without verifying rental history — and then don’t do the same for others, you’ve created a legal liability.
The Fix: Create a written screening policy before you list the unit. Define your income requirements (typically 2.5–3x monthly rent), credit score threshold, rental history expectations, and any other criteria. Apply it identically to every applicant. Keep documentation of every decision.
California Compliance Note San Diego landlords must also comply with local ordinances including the Tenant’s Right to Know Ordinance and Just Cause Eviction rules. Inconsistent screening creates downstream legal risk. Mendes Company manages compliance proactively — so our clients don’t have to. Contact us to learn more → |
Mistake #4: Moving Too Fast Because of Vacancy Pressure
Every day your unit sits vacant, you’re losing money. In San Diego, where average rents can exceed $2,500/month for a two-bedroom, the pressure to fill quickly is real.
But placing the wrong tenant costs far more than a few weeks of vacancy. Here’s a quick comparison:
Vacancy Cost (3 weeks) | Bad Tenant Eviction Cost |
|---|---|
~$1,750 in lost rent | $10,000–$20,000+ in legal fees, lost rent, and repairs |
The Fix: Set a firm screening timeline and stick to it. If an applicant can’t provide documentation in time or pushes you to decide faster, that’s a red flag. Good tenants expect a thorough process — they’re not threatened by it.
Proactively marketing your unit before the current tenant vacates, maintaining a waitlist, and working with a property manager who has established marketing channels can dramatically reduce vacancy time without compromising on tenant quality.
Mistake #5: Not Working With Someone Who Knows California Law
This is the one that catches landlords by surprise. California is the most tenant-protective state in the country — and it changes frequently. AB 1482. SB 567. Local rent control. Just Cause Eviction. Source of income protections. Section 8 requirements.
If your screening process — or your lease — isn’t built around current California law, you’re exposed.
We regularly see landlords who:
- Reject Section 8 applicants (now illegal in California for most housing)
- Use outdated lease language that doesn’t reflect current Just Cause protections
- Fail to provide required disclosures at move-in
- Charge application fees above the legally permitted amount
Any one of these can trigger a complaint, an investigation, or a lawsuit.
The Fix:
Work with a property management team that stays current on California and San Diego-specific landlord-tenant law — and builds compliance into every step of leasing. At Mendes Company, our leasing process is reviewed regularly to reflect current law, so our clients are always protected.
The Bottom Line
Tenant screening isn’t just a formality — it’s one of the highest-leverage decisions you’ll make as a property owner. Getting it right protects your income, your assets, and your peace of mind.
At The Mendes Company, we’ve developed a screening process built on 15+ years of San Diego multifamily experience. We manage properties as we own them — which means we’re just as invested in placing the right tenant as you are.
Whether you own one unit or a hundred, our team can take the stress of leasing and compliance off your plate entirely.