ESAs and Service Animals: What Landlords Can and Cannot Ask

The Volume Reality

ESA-related accommodation requests have climbed dramatically since 2020. PetScreening's 2025 data shows roughly 7-9% of rental applications now include an ESA or service animal claim, up from 1-2% pre-pandemic. The volume has produced a cottage industry of online ESA letter mills — and HUD has spent the last two years tightening guidance on what landlords can legitimately ask. For independent landlords, the rules are clearer than they were, but the penalties for getting them wrong have not gotten lighter.

Service Animals vs. ESAs vs. Pets

• Service animals (under the ADA): dogs (and in some cases miniature horses) individually trained to perform tasks for a person with a disability. The animal does specific work — guiding the blind, alerting to seizures, retrieving items.
• Emotional support animals (under the Fair Housing Act, not the ADA): any species, no specific training required, prescribed by a healthcare provider to ameliorate symptoms of a disability. Most ESA claims involve dogs and cats, but rabbits, birds, and even reptiles have been accepted in housing.
• Pets: everything else. Pet fees and pet deposits are legitimate; breed restrictions are enforceable; "no pets" policies are enforceable.

The legal protections apply to service animals and ESAs. Pets get none of these protections.

What You Can Ask

If the disability and the need are not obvious, you can request reasonable documentation. The 2020 HUD guidance and 2024 follow-on letters establish a two-question framework:

• Does the person have a disability — a physical or mental impairment that substantially limits one or more major life activities? (Yes/no.)
• Does the person have a disability-related need for the assistance animal? (What does the animal do that helps with the disability?)

If the answer to both is yes and the request is reasonable, you must grant the accommodation. You can request reliable documentation from a healthcare provider establishing both points. You cannot ask for medical records, the specific diagnosis, or details about the disability beyond what verifies the need.

What You Cannot Ask

• For service animals where the disability is obvious (a guide dog with a visually impaired handler), no questions at all.
• For documentation about a specific diagnosis.
• For the animal's training records (ESAs do not require training).
• For a pet deposit, pet rent, or pet fee for the animal.
• For breed or weight restrictions (the assistance animal is exempt from those policies).

The Online ESA Letter Question

The single biggest enforcement shift in the last two years is HUD's clarification that landlords can scrutinize the legitimacy of provider relationships. A telehealth provider in another state who issued an ESA letter after a 10-minute intake is not, on its face, automatically invalid — but HUD has acknowledged that landlords may seek to verify the provider is licensed and that an actual provider-patient relationship exists. The safest approach:

• Verify the provider holds an active license in the state they practice in.
• Confirm in writing that the provider has personal knowledge of the patient's disability and disability-related need.
• If the letter is from a website-only operation with no provider name or license number, you may push back for the name and credentials.

You cannot reject simply because the provider is online or out of state. You can require documentation that establishes a legitimate professional relationship.

When You Can Deny

Three legitimate grounds for denial, even after a valid accommodation request:

1. Direct threat. The specific animal has demonstrated behavior that poses a direct threat to the health or safety of others — typically a documented bite history. You cannot deny based on breed; you must show evidence of the individual animal's behavior.
2. Substantial physical damage. Specific evidence the animal will cause substantial physical damage to property — again, individual evidence, not generalizations.
3. Undue financial or administrative burden. Rare in housing; almost always loses in litigation.

The "Surprise Animal at Move-In" Scenario

A common situation: tenant signed a no-pets lease, moved in, and three months later shows up with an animal and an ESA letter. Your obligations:

• Process the accommodation request like any other; you cannot reject solely because it is mid-lease.
• If granted, you cannot retroactively charge pet rent or pet fees.
• If denied (on one of the three legitimate grounds), document the basis carefully; expect the tenant to push back.
• If the animal causes documented damage, you can charge that damage against the security deposit at move-out.

The Damage Charge Is Still Available

The most common misunderstanding among landlords: assistance animals are exempt from pet fees, but they are not exempt from damage liability. If the cat shreds the carpet, you can charge for the carpet replacement at move-out. Document with move-in photos and move-out photos exactly as you would for any tenant. The animal's status protects the tenant from up-front fees, not from accountability for actual damage.

The right posture on ESAs is professional process, not skepticism. Verify what you are allowed to verify, grant what you are required to grant, and charge for actual damage at the end. The Fair Housing penalties for getting it wrong are real; the day-to-day cost of getting it right is minimal.