How to Build Your Tenant Screening Criteria: The Independent Landlord’s Guide

Most landlord problems do not start with a bad tenant. They start before the tenant ever moves in.

Screening is the one stage of the landlord lifecycle where you get to decide who enters your property. Everything after that is managing a tenancy that has already started. Screening itself does not start when applications arrive. It starts with the standards you set before you ever list the property.

That is what this post is about. Not the whole screening process, just the foundation: how to build a written screening criteria that is fast, consistent, and legally defensible. This is the same criteria documented in the Independent Landlord Screening System, and it is the base every other landlord system builds on.

Get this part right and the rest of screening becomes simple. You stop making judgment calls and start following your own rules.

Set Your Standards Before the Listing

Most landlords start screening when applications arrive. Your criteria need to exist before that. Not in your head. In writing.

The moment you evaluate applicants without written standards, every decision becomes a judgment call. Judgment calls are inconsistent, they are stressful, and they create a risk of fair housing violation, even when your intentions are good.

Written standards do four things for you:

1. They make decisions faster.You are comparing each applicant to a fixed standard, not to each other.
2. They make decisions consistent.Every applicant is evaluated the same way.
3. They protect you legally.You have a documented basis for every approval and denial if a decision is ever challenged.
4. They give you confidence.When applications start coming in, the decisions are already made. You simply follow your own rules.

Here is what goes into that criteria, category by category, and exactly how I build my own.

Income

You obviously need enough income to cover the rent. Most landlords already know the common standard: combined gross household income of 2.5 to 3 times the monthly rent. The exact multiple is your call. No state law sets it for you, though some local municipalities, like Portland, Oregon, have income cap rules. Check your city before you set your number.

A few things to build in from the start:

Employment history. Income only matters if it is stable. Decide how much steady employment you want to see, such as a minimum time at a current job or in the same line of work, and how you will treat gaps, recent job changes, or self employment. For self employed or gig income, set a clear standard like two years of tax returns or a year to date profit and loss statement. Write down what counts as verifiable so every applicant is measured the same way.

Source of income protections. In many states and cities it is illegal to discriminate against lawful sources of income. That includes housing choice vouchers such as Section 8, child support, and disability payments. Income is income.

Combined income. When spouses, partners, or roommates apply together, look at their combined gross income. Do not require every individual to meet the full income minimum on their own.

Credit and Debt

This is where a lot of landlords overcomplicate things. Keep it to two decisions: how you read credit, and how much debt you will accept.

Credit history over credit score. Some landlords set a minimum credit score, say 670, and stop there. I do not. I look at patterns instead: unpaid collections, recent delinquencies, and housing related debt. I care more about how someone has handled their obligations than a single number.

Why? Personal experience has taught me good tenants do not always have a perfect credit score. I have been through a bankruptcy and a divorce, and I am grateful for the landlords who looked at my history instead of my score. There is also a practical reason. When an applicant and a financially responsible co-applicant are held to the same written criteria, a hard score floor can knock out an otherwise strong household over one person’s number. Reading history lets me judge the full picture fairly and still stay consistent.

Whatever you choose, write it down. “Minimum score of X” or “no housing related collections and no delinquencies in the past two years.” This is about building a screening criteria for your property.

Debt. Income alone does not tell you if someone can comfortably pay rent. An applicant can clear your income minimum and still be buried in car payments, student loans, and credit cards. That is what a debt to income (DTI) threshold catches. Common landlord thresholds run from 30 percent up to 50 percent, and most people judge it against a matrix like this one:

Rental History and Landlord References

Past rental behavior is one of the strongest predictors of future rental behavior. The common standard is positive landlord references, on time payment history, and no lease violations in the past five to seven years.

The hard part is verifying it. Plenty of landlords never send unpaid tenants to collections, so a clean record is not proof of a clean tenant, and the “landlord reference” on the application might just be the applicant’s best friend. There are no guarantees. Some people are very good at falsifying information, so you want to make it much harder for them.

Start with a rental verification form. Make the applicant do the legwork of getting it to the right party, completed and returned to you as part of a complete application. The completed form is not enough on its own. Anyone can fill one out. It is your starting point, not your finish line.

Now for the verification step. I use two tools:

While you have them on the phone, ask for documentation: a payment ledger, an official rental history statement, or the first and signature pages of the most recent lease. You can also ask the applicant directly for three to six months of bank statements so you can see rent actually leaving their account, on time, to the landlord they listed.

If picking up the phone and knowing what to say feels hard, I created phone scripts inside the Independent Landlord Screening System that I use to guide the conversation and document the answers.

The People

Occupancy. Decide the maximum number of occupants the property can reasonably hold based on local code. Do not differentiate between adults and children. An occupant is an occupant. Do not get too restrictive, though, since that can be discrimination. Setting a three occupant cap on a three bedroom home, for example, is a problem. A common rule of thumb is two occupants per bedroom plus one for a living space, depending on code and square footage.

Background checks. Decide who gets one, the main applicant or every adult over 18, and decide what constitutes a denial before you ever run one. Blanket denials based on criminal history can violate Fair Housing, so document and advertise that you conduct individualized assessments. Consider convictions only, never arrests, since an arrest is not proof of wrongdoing and denying on arrests alone is a known fair housing risk. You may set a standard such as no violent crimes, sexual offenses, or drug manufacturing and distribution crimes. Set time limits, such as disregarding a felony that is more than seven years old and a misdemeanor older than three years. Some jurisdictions require you to weigh rehabilitation and probation compliance as part of an individualized assessment. Depending on your criteria, you may choose to ask for a letter from a probation officer or case worker confirming compliance with court orders, as well as a character reference from a pastor, community leader, or employer.

Some considerations when assessing criminal history include:

Laws vary. If you rent in Oregon, Washington, or Colorado, this is a good read: Read the Oregon, Washington and Colorado guidance.

Smoking. Decide whether the property is non-smoking, outdoor only, or smoking permitted. You can deny an applicant for being a smoker. Smoking is not a protected class. This covers all forms, including cigarettes, cigars, and cannabis.

Pets and Animals

Decide your pet policy before an applicant asks. What animals are allowed, any size or quantity limits, any additional requirements such as renters insurance or liability, and your fees.

Common rules restrict by breed and weight, for example under 45 pounds, and limit the household to one or two animals. Landlords typically charge a one time non-refundable pet fee or a refundable pet deposit in the 200 to 500 dollar range, plus monthly pet rent of 25 to 100 dollars per pet. Your exact numbers depend on local law and your market.

One important distinction. Service animals and assistance animals are not pets and are not subject to your pet policy. They are governed by specific federal and local laws that you want to understand well before an applicant ever requests an accommodation. Tenants do remain fully responsible for any property damage their assistance animals cause. For every animal on the property, I strongly recommend adding an Animal Conduct Agreement to your lease.

Co-Signers and Guarantors

This section assumes you run screening the way I do: every adult over 18 submits their own application with background and credit checks, and your application clearly distinguishes a solo or main applicant, a financially responsible co-applicant, and an adult occupant.

A co-signer or guarantor is a financial safety net. You accept one when an applicant meets most of your criteria but falls short on a specific, objective standard such as the income to rent ratio, your credit requirement, or rental history.

Know the difference, since it matters:

When you might accept one:

If you accept third party signers, write down two things in advance: what circumstances trigger the need for one, and what that signer has to qualify for. Then hold them to it.

Require the co-signer or guarantor to pass the same screening you run on applicants: background, identity, and income verification. Guarantors need separate, higher financial requirements, since they need to cover their own living expenses and your rent. When you calculate a guarantor’s DTI, add your property’s rent to their existing obligations and treat them as if they alone are responsible for it. Do not blend their income with the applicant’s. I also suggest tying your DTI to a strict credit score floor, typically 700 or higher, since a low DTI means nothing if the person has a history of skipping payments.

You do not have to accept guarantors at all. You can leave that out of your criteria and still keep an option open for nuanced situations, as long as your rules are set beforehand. For example: an applicant meets every standard but has variable freelance income, so your written rule requires them to pay last month’s rent up front or prove two months of rent in cash reserves. Other tools in the same spirit are showing substantial assets or savings, or accepting a higher security deposit to offset a lower income.

“Fair Housing Does Not Apply to Me”

I know what some of you are thinking. Fair housing risk? I live in half of my own duplex, or I only own two single family homes.

It applies to you too, in more places than you would expect. Most commonly, every ad or listing for a rental has to comply with Fair Housing regardless of your landlord status. You cannot post an ad that signals a preference or limitation based on a protected class. Some examples that seem harmless are “perfect for a couple,” “ideal for a single person,” “must be able to climb stairs,” and “no pets, no exceptions.”

Due to all these nuances, and that I am in Oregon, I follow the strictest of the laws that could apply to me. At the end of the day this is a business, and my job is to protect my assets.

What Mine Looks Like

Here is my actual written standard, so you can see one in practice. My property is a two bed, two bath duplex. This is an example, not a comprehensive template, but it shows how short and usable a real standard can be:

My full screening criteria, including when I take guarantors and their minimum requirements, are all neatly written down on the Screening Criteria Builder inside The Independent Landlord Screening System. It starts right here, with building your criteria and finding your state and local laws, then moves through each step until you have a signed lease in hand.

Putting It Together

Your screening criteria is the foundation of everything that follows. It is not complicated to build. What makes it work is writing it down before you list, then holding to it for every applicant, every time, without letting urgency or a good first impression talk you out of your own rules.

A vacancy feels expensive. A bad tenancy is far more expensive. The time you spend building your criteria is the cheapest protection you can buy.

In the next post, I walk through what to do once your criteria is set: pre-screening, collecting a complete application, verifying what applicants tell you, scoring consistently, delivering your decision in writing, and getting the lease signed before anyone gets keys.