
You’ve got a vacancy. You need to fill it fast. Applications start coming in. You pick the first one that looks decent and move forward.
Three months later, your tenant stops paying rent. You discover they have a history of evictions. You try to evict them, but it takes 60 days. You lose $9,600 in rent. You spend $2,000 on legal fees. The property needs $3,000 in repairs after they leave.
Total cost: $14,600.
All because you skipped proper tenant screening.
This is one of the most expensive mistakes Seattle landlords make. And it’s completely preventable.
Why Tenant Screening Matters
Before we talk about mistakes, let’s talk about why screening matters.
The Cost of a Bad Tenant:
A single bad tenant can cost you $10,000-$30,000 in lost rent, legal fees, repairs, and time. That’s not an exaggeration. That’s the reality.
A good tenant, on the other hand, pays on time, takes care of the property, renews their lease, and causes minimal problems.
The difference between a good tenant and a bad tenant is often determined in the screening process.
The Kindness Balance:
Here’s the important part: Proper screening isn’t about being harsh or discriminatory. It’s about being fair—to yourself and to the tenant.
When you screen properly, you find tenants who can actually afford the rent. You avoid setting them up for failure. You build a stable, long-term relationship.
When you skip screening, you often end up with tenants who can’t afford the rent, who struggle, who eventually stop paying. Nobody wins.
Proper screening is kind to everyone involved.
That’s why speed matters. Every day your unit sits empty costs you money. According to Zillow rental market data, extended days on market significantly increase landlord losses due to missed rental income.
Read more: Tenant Screening Criteria Guide
Want to Avoid Costly Tenant Screening Mistakes?
See how proper screening protects your rental income and helps you place reliable tenants faster.
Mistake #1: Not Verifying Income
The Mistake:
Tenant says they make $60,000 per year. You believe them. You don’t verify.
Three months later, they stop paying rent. You discover they actually make $30,000 per year and have been struggling since day one.
Why This Happens:
You’re in a hurry to fill the vacancy. You assume people are honest. You don’t want to be intrusive.
The Cost:
- Lost rent: $9,600 (3 months at $3,200/month)
- Legal fees: $2,000
- Eviction process: 60 days of stress
- Property damage: $2,000
- Total: $13,600
How to Fix It:
Rule #1: Income should be 3x the monthly rent minimum.
If your rent is $3,200/month, the tenant should make at least $9,600/month ($115,200/year).
How to Verify:
- Request recent pay stubs (last 2-3 months)
- Contact the employer directly to verify employment
- Ask for tax returns (last 2 years) if self-employed
- Check W2s or 1099s
- For retirees, verify Social Security or pension income
- For students, verify financial aid or parent co-signer
Document Everything:
Keep copies of all income verification. This protects you if there’s ever a dispute.
Be Flexible:
If someone is just below the 3x threshold but has excellent credit and references, consider a co-signer. This shares the risk.
According to guidance from the Consumer Financial Protection Bureau, verifying income helps ensure tenants can reasonably afford housing costs and reduces default risk.
Want to Avoid Costly Tenant Screening Mistakes?
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Mistake #2: Not Checking Eviction History
The Mistake:
You don’t check if the tenant has been evicted before. They seem nice. They have good references.
You find out later they’ve been evicted three times in the past five years.
Why This Happens:
You assume if someone was evicted, they wouldn’t be applying for rentals. You don’t think to check. You want to give people second chances.
The Cost:
- Lost rent: $9,600
- Legal fees: $2,000
- Eviction process: 60 days
- Property damage: $3,000
- Total: $14,600
How to Fix It:
Check the Eviction History:
- Run a background check that includes eviction records
- Search King County District Court records (free online)
- Ask the tenant directly: “Have you ever been evicted?”
- Contact previous landlords and ask specifically about evictions
Understand the Context:
Not all evictions are equal. Someone evicted once 10 years ago might be different from someone evicted three times in the past two years.
Be Fair:
Washington law restricts how you can use eviction history. You can’t automatically reject someone based on an old eviction, but you can consider it as one factor.
Ask Questions:
If someone has an eviction on their record, ask them about it. Listen to their explanation. People can change.
According to Washington Courts public records, eviction filings are publicly available and can reveal patterns of nonpayment or lease violations.
Read more: Washington Landlord Documentation Guide
Mistake #3: Not Calling Previous Landlords
The Mistake:
You check references, but you don’t actually call them. You send an email. The reference doesn’t respond. You assume everything is fine.
You later discover the tenant was a nightmare for their previous landlord—late rent, noise complaints, property damage.
Why This Happens:
Calling takes time. You’re busy. You assume email is sufficient. You don’t want to be intrusive.
The Cost:
- Lost rent: $9,600
- Legal fees: $2,000
- Eviction process: 60 days
- Property damage: $5,000 (more damage because you didn’t know the pattern)
- Total: $16,600
How to Fix It:
Call, Don’t Email:
Email is easy to ignore. A phone call is harder to avoid.
Ask Specific Questions:
- “Did the tenant pay rent on time?”
- “Were there any lease violations?”
- “Any complaints from neighbors?”
- “Would you rent to them again?”
- “Is there anything I should know?”
Listen for Hesitation:
Sometimes what people don’t say is more important than what they do. If a previous landlord hesitates or seems reluctant to recommend the tenant, that’s a red flag.
Get Multiple References:
Don’t rely on just one previous landlord. Try to reach at least two. This gives you a clearer picture.
Document the Conversation:
Write down what the previous landlord said. Keep this in your records.
Based on best practices published by HUD, landlord references help identify behavioral patterns and rental history reliability.
Mistake #4: Not Running a Credit Check
The Mistake:
You skip the credit check to save money or because you want to be lenient. The tenant seems nice.
Three months later, they stop paying rent. You discover they have a history of not paying bills and have multiple collections accounts.
Why This Happens:
Credit checks cost money ($20-$50). You want to save money. You assume if they can afford the rent, they’ll pay it.
The Cost:
- Lost rent: $9,600
- Legal fees: $2,000
- Eviction process: 60 days
- Collection agency fees: $1,000
- Total: $12,600
How to Fix It:
Run a Credit Check:
Use a reputable tenant screening service. It costs $20-$50 and can save you thousands.
Look for Patterns:
A single late payment from 10 years ago is different from multiple recent late payments. Look for patterns.
Red Flags:
- Multiple recent late payments
- Collections accounts
- Judgments against them
- Bankruptcy within the last 2-3 years
- High debt-to-income ratio
Be Fair:
Credit scores aren’t perfect. Someone might have had a rough patch but is now stable. Consider the context.
Set a Threshold:
Decide in advance what credit score you’ll accept. Be consistent. This protects you from discrimination claims.
According to Experian credit reporting guidance, payment history is one of the strongest indicators of future financial behavior.
Read more: Seattle Security Deposit Laws Guide
Mistake #5: Not Doing an In-Person Interview(Need to be reviewed for consistency)
The Mistake:
You review applications online. You make a decision based on paper. You never meet the tenant in person.
You later discover they’re not who they claimed to be. The application had false information. You’re stuck with a problem tenant.
Why This Happens:
You’re busy. You think the application is sufficient. You want to move fast. You’re uncomfortable with face-to-face interaction.
The Cost:
- Lost rent: $9,600
- Legal fees: $2,000
- Eviction process: 60 days
- Property damage: $4,000
- Total: $15,600
How to Fix It:
Meet in Person:
Schedule a brief in-person meeting. This doesn’t have to be long—15-30 minutes is sufficient.
What to Observe:
- Are they respectful and professional?
- Do they answer questions directly?
- Do they seem stable and organized?
- Do they ask good questions about the property?
- Do they seem genuinely interested in renting from you?
What to Ask:
- “Tell me about your rental history.”
- “Why are you moving?”
- “What do you do for work?”
- “Do you have any pets or dependents?”
- “What’s your ideal rental situation?”
- “Do you have any questions about the lease?”
Trust Your Instincts:
Sometimes you’ll meet someone and something feels off. Trust that feeling. You don’t need to rent to them.
Document the Meeting:
Write down your impressions. Keep this in your records.
Based on recommendations from the National Apartment Association, in-person interaction improves screening accuracy and reduces fraud risk.
To simplify screening and reduce risk, many landlords choose professional management. Learn more about GPS Renting property management services.
Stay Informed About the Seattle Rental Market
Staying informed about the Seattle rental market allows property owners to make smarter, data-driven decisions. We share regular updates, local Seattle insights, and market analysis to help landlords navigate pricing trends, demand changes, and new regulations.
The Screening Checklist
Here’s a simple checklist to make sure you’re screening properly:
Income Verification:
☐ Request recent pay stubs
☐ Verify employment with employer
☐ Confirm income is 3x monthly rent
☐ Document all income verification
Background Check:
☐ Run criminal background check (with legal restrictions)
☐ Check eviction history
☐ Run credit check
☐ Document all findings
Reference Checks:
☐ Call at least 2 previous landlords
☐ Ask specific questions about payment and behavior
☐ Document conversations
☐ Look for red flags
In-Person Interview:
☐ Meet the tenant in person
☐ Ask about their rental history and current situation
☐ Observe their professionalism and stability
☐ Trust your instincts
☐ Document your impressions
Legal Compliance:
☐ Ensure all screening is fair and non-discriminatory
☐ Follow Washington state laws
☐ Keep all documentation
☐ Apply criteria consistently to all applicants
The Kindness Approach to Screening
Here’s the important part: Proper screening isn’t about being harsh. It’s about being fair.
When you screen properly, you:
Protect Yourself: You avoid problem tenants who will cost you thousands.
Help Good Tenants: You find people who can actually afford the rent and will succeed in your property.
Build Relationships: You start with honesty and clear expectations. This builds trust.
Reduce Conflict: When you screen well, you get tenants who can pay, who respect the lease, who communicate. Fewer problems means less conflict.
Set People Up for Success: When you rent to someone who can’t afford the rent, you set them up for failure. They’ll struggle, fall behind, and eventually be evicted. That’s not kind. That’s harmful.
Proper screening is kind to everyone.
Read more: How GPS Renting Reduces Vacancy Loss
Ready to Understand Your Property’s Value?
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Calculate Your Rental Potential
Use our True Cost Calculator to understand your property’s value and rental potential. Input your address and see:
- What your property is worth today
- What you’d net if you sold
- What you’d earn if you kept it as a rental
- How your neighborhood compares

Common Screening Mistakes in Washington State
Washington has specific tenant protection laws. Make sure you’re screening legally.
What You CAN Do:
- Verify income and employment
- Check credit history
- Check eviction history
- Run criminal background checks (with limitations)
- Contact previous landlords
- Meet the tenant in person
- Apply consistent criteria to all applicants
What You CANNOT Do:
- Discriminate based on protected characteristics (race, religion, national origin, disability, familial status, etc.)
- Reject someone based solely on an old eviction
- Reject someone based on criminal history without considering context
- Use screening criteria inconsistently
- Violate privacy laws
When in Doubt:
Consult with a property management attorney. It’s worth the cost to make sure you’re complying with Washington law.
Ready to Screen Tenants Professionally?
Screening takes time and expertise. If you’d rather focus on other things while we handle tenant screening, background checks, and reference verification, GPS Renting can help.
We use a comprehensive screening process that’s both thorough and fair. We find good tenants so you don’t have to worry.
Schedule a Consultation
Spring turnover can be stressful. If you’d rather focus on other things while we handle tenant screening, pricing, and lease management, we’re here to help.

Haobang Lu
Business Development Manager
The Bottom Line
Tenant screening isn’t about being harsh or discriminatory. It’s about being smart and fair.
When you screen properly, you:
- Avoid costly problem tenants
- Find reliable, stable tenants
- Build long-term relationships
- Reduce legal risk
- Sleep better at night
When you skip screening, you risk losing $10,000-$30,000 on a single bad tenant.
The choice is clear.
Spend 2-3 hours screening. Save $15,000 in lost rent and legal fees.
That’s a good investment.
FAQs
How much income should a tenant have?
Most landlords require tenants to earn at least three times the monthly rent to ensure affordability and reduce default risk.
Should I always run a credit check?
Yes. Credit history provides insight into payment behavior and financial responsibility.
Can I reject a tenant for low credit?
You can consider credit as one factor, but screening criteria must be applied consistently and comply with fair housing laws.
Is checking eviction history legal in Washington?
Yes, but you must consider context and follow Washington tenant protection laws.
Should I call previous landlords?
Yes. Direct conversations often reveal behavioral patterns not shown on applications.
