Red flags in a rental application landlords should never ignore

You’ve got a unit listed, a handful of applications in your inbox, and every empty day is costing you money. That’s a tough moment to stay picky, and an even worse one to get sloppy. Most bad tenancies trace back to something small on the application that nobody chased, which is why understanding your tenant screening process matters before you approve anyone.

This post is for owners and investors in southern Maine who want to read an application like someone who has seen a lot of them. We’ll cover the red flags worth stopping for, the “red flags” that are actually illegal to act on, and a simple way to weigh what you find.

In This Guide

A Bad Placement Costs More Than a Slow Month

Let’s do the math. Our managed rentals average about $1,895 a month. Say a unit sits empty for six weeks while you wait for the right applicant. That’s roughly $2,650 gone. It hurts, but you recover.

Now say you rush, approve the wrong person, and they stop paying. A contested eviction in Maine can drag on for a while depending on the case and the court’s schedule. At six months of unpaid rent, you’re near $11,370 before filing fees, repairs, and turnover.

That’s the trade. A few extra days of vacancy against a possible five-figure hole.

One multi-unit owner wrote in a review that she was skeptical going in because “I have heard nightmare stories regarding property management companies.” Those stories usually start the same way. Someone got approved who should have gotten a second look.

Waiting is cheaper than guessing.

Income That Doesn’t Add Up

A common benchmark is that an applicant’s gross monthly income should be at least three times the rent. On a $1,895 unit, that’s about $5,685 a month. Treat it as a starting point, and apply the same standard to every applicant. Write it down so you can point to it later.

Self-Employed and Gig Income

Westbrook has been drawing more younger renters and working families who got priced out of Portland. That’s good for demand. It also means more applicants with self-employed income, gig work, or non-traditional pay, and a simple pay stub check won’t cut it.

Picture a multi-unit owner who approves a self-employed applicant because the bank statements show big deposits. The deposits have no pattern. Months later, rent shows up late, then partial, because the income came from one contract that ended before the lease began.

For income that isn’t a regular paycheck, ask for several months of statements and look for a steady pattern. Ask what the income depends on and when it ends.

Numbers That Don’t Match

These are the signs we’d stop on:

• Stated vs. documented: The income on the application doesn’t match the pay stubs or statements.
• Unverifiable employer: Nobody can confirm the job when you call.
• Irregular deposits: Big lump sums with no repeat.
• Short runway: The income source has an end date close to the lease start.

Commercial applicants are a different animal. Commercial property management in Westbrook, Maine means weighing business financials instead of pay stubs. The instinct is the same, though. Verify before you sign.

A Rental History With Holes

Rental history tells you more than almost anything else on the page. Look for patterns.

Say an applicant has strong income on paper, but their history shows three addresses in two years, and the previous landlord never returns your calls. The income looks great, so the owner approves. Six months later the tenant breaks the lease early and the unit needs cleaning well past normal wear.

Early lease termination is one of the most common tenant issues we see. It often traces back to an applicant whose life was unsettled when they applied.

Call the current landlord and the one before that. A current landlord may say nice things just to move someone out. The previous one has no reason to.

Here’s what to ask:

1. Did rent arrive on time?
2. Did they give proper notice when they left?
3. Were there lease violations or neighbor complaints?
4. What shape was the unit in at move-out?
5. Would you rent to them again?

That last question gets honest answers more often than you’d think. A long pause tells you plenty.

Applications That Are Incomplete or Keep Changing

How someone handles the application is a preview of how they’ll handle the lease. Small things add up.

• Blank fields: Skipped questions, missing references, vague dates.
• Shifting story: Move-in dates, employers or reasons for leaving change between the application and the phone call.
• Refusal to authorize screening: If they won’t sign off on a credit or background check, that tells you something.
• Slow or evasive replies: If they dodge simple questions now, think about repair requests and rent reminders later.

Pet Answers That Change

Unauthorized pets are one of the most common tenant issues in our portfolio. Pet-friendly rentals are scarce here, so some applicants hide a dog or cat to get approved. Pet policies vary by property and each owner sets their own, so we spell out the rules and put them in writing.

Ask about pets directly. Put the answer in the application and the lease. Then check at inspection.

One caution. A request for an assistance animal is not a red flag, and it isn’t the same thing as a pet. Federal fair housing law requires reasonable accommodations in rules like a no-pets policy. A landlord can decline only in narrow cases, like a direct threat to others’ safety or substantial damage to property.

The June Rush Is Where Red Flags Get Missed

Southern Maine sees a big application wave in late spring and early summer. Competition between landlords is real, and so is the temptation to move fast.

Picture a landlord with several applications in June who skips the reference calls because the credit score looks fine. The tenant has an undisclosed pet. By the time anyone finds out, the hardwood has damage that’s more than the security deposit.

Here’s the rule we’d use. If you can’t verify something, don’t approve it yet. One more week of vacancy at $1,895 costs about $440. That’s cheap insurance against a mistake that runs ten times that.

We run applications through AppFolio, which includes credit and background screening in the application workflow. The software handles the paperwork. The reference calls still take a human.

A commercial real estate broker who sends multifamily investors our way wrote in a review that “what my investor clients really care about is vacancy, and his stays low.” Our portfolio vacancy sits at 2.5%. We credit part of that to how we screen and how we stay in touch with tenants after move-in, not just the market.

A Great Credit Score Isn’t a Character Reference

A high score tells you someone pays their bills. It doesn’t tell you how they treat neighbors, whether they follow lease terms, or how they communicate when something goes wrong. Plenty of applicants with excellent credit make terrible tenants. A screening process that stops at the credit report misses half the picture.

The flip side matters too. Rejecting someone over a single red flag can cost you more than accepting them. Context counts.

Use a simple rule:

• One isolated item: An older issue with a clear explanation and a clean record since deserves a closer look.
• A pattern: Repeated late payments, repeated early exits, or a pile of small inconsistencies is a pass.

Rigid cutoffs produce longer vacancies. They also approve people who know how to look clean on paper.

What Is Not a Red Flag

Some things look like warning signs to nervous landlords. In Maine, acting on them is unlawful. Keep these out of your screening notes and your application questions.

Applying the same written criteria to every applicant is your best protection. It’s also just fair.

Screening Fees and Denial Notices, Done Right

A red flag only helps if you handle the paperwork correctly. Maine and federal rules both apply.

Under Maine law:

• No application or review fee: Landlords generally can’t charge to submit or review an application.
• Screening cost only: You may charge the actual cost of only one of these: a background check, a credit check, or one other screening, with no markup.
• Notice first: You must tell the applicant before charging that the law requires you to give them a complete copy of the results.
• Once per year: You can charge the same applicant only one screening fee in any 12-month period.

If you deny an applicant, require a co-signer, or ask for a larger deposit based even partly on a consumer report, federal law requires an adverse action notice. It must tell the applicant about the decision and any credit score used. It must name the screening company and state that the company didn’t make the decision. It must also explain their right to a free copy of the report within 60 days and to dispute errors.

Rules change, so check the current statute or talk with an attorney for your situation.

How We Weigh an Application

We don’t run a checklist and call it done. Katie, our property manager, talks with owners directly about what she sees, and Bernard, who owns Go Nest, knows our owners by name. If something looks off on an application, a person tells you, not a ticket queue.

When you read an application yourself, run it through this order:

1. Verify income against documents, not just the number on the form.
2. Call two landlords, current and previous.
3. Check for patterns across addresses, payments and answers.
4. Confirm pets and occupancy in writing.
5. Follow your written criteria for every applicant, and send the required notices if you deny.

We manage single-family, multi-family, townhomes, student housing, commercial and HOA properties across 174 doors, from Portland and South Portland to Gorham and Windham. Different property types, same discipline.

Owners comparing property management for Westbrook, Maine rentals often tell us screening is what they worry about most. If it feels harder than it should, we’re open to a conversation. And if you’ve read through property management Westbrook Maine reviews, you’ll notice the owners who are happiest talk about the same thing. Nothing fell through the cracks.

FAQ

Can I charge an application fee in Maine?

Generally no. Maine bars application and review fees, but you may charge the actual cost of one screening check, with no markup, after telling the applicant the law requires you to give them a copy of the results. You can’t charge the same applicant more than once in 12 months.

Is a past eviction an automatic reason to deny someone?

Not automatically. Look at the pattern and the context, such as how long ago it was and what the record looks like since. If a consumer report plays any part in a denial, you owe the applicant the federal adverse action notice.

How many landlord references should I call?

Two if you can, the current landlord and the previous one. The current landlord may be motivated to move the tenant along, so the earlier reference often gives a more honest picture.

Can I turn down an applicant who has a protection order?

No. Since Sept. 24, 2025, Maine bars landlords from asking about it or refusing housing because of it, so it can’t count as a red flag.

Do I have to allow an assistance animal if my property is no-pets?

Federal law treats refusing a reasonable accommodation, like applying a no-pets rule to an assistance animal, as disability discrimination. A landlord can decline only if the tenancy would be a direct threat to others’ health or safety, or would cause substantial physical damage to others’ property.

What income should an applicant have?

A common benchmark is gross monthly income of at least three times the rent. Whatever standard you pick, write it down and use it for every applicant.