ESA Documentation: What Your Letter Must Include and What Landlords Can Actually Ask For

ESA documentation disputes are one of the most common points of conflict between tenants and landlords. Landlords claim the letter isn't sufficient. Tenants don't know what standard they need to meet. Third-party verification platforms insert themselves into the middle and charge fees. Here's what the law actually requires.

What a Valid ESA Letter Must Establish

Under HUD Guidance FHEO-2020-01, an ESA letter doesn't need to follow any specific format — but it must reliably establish two things:

1. That you have a disability — a physical or mental impairment that substantially limits one or more major life activities
2. That there is a disability-related need for the assistance animal — the animal provides emotional support that alleviates one or more identified symptoms or effects of the disability

That's it. The letter doesn't need to name your diagnosis. It doesn't need to include your medical records. It doesn't need to specify the severity of your condition. It needs to establish those two elements.

Who Can Write an ESA Letter

The letter must come from a licensed healthcare professional who has personal knowledge of you and your disability. This includes:

• Licensed therapists and counselors (LPC, LCSW, MFT)
• Psychologists (PhD, PsyD)
• Psychiatrists (MD)
• Primary care physicians and other MDs
• Nurse practitioners and physician assistants (in many states)

The key requirement is "personal knowledge" — the provider must have actually evaluated you, not just reviewed a questionnaire or issued a form letter.

What a Strong ESA Letter Should Include

While the law doesn't require specific elements beyond the two above, a well-written ESA letter typically includes:

• Provider's name, title, and license number
• Provider's state of licensure
• Statement that the tenant is under the provider's care
• Statement that the tenant has a disability within the meaning of the Fair Housing Act
• Statement that the tenant has a disability-related need for an assistance animal
• Brief statement of how the animal alleviates one or more symptoms of the disability (doesn't need to be detailed)
• Date of the letter
• Provider's signature

The letter does NOT need to include: your diagnosis name, your medical history, severity assessments, the animal's breed/training status, or any reference to ESA registries or certification databases.

What Landlords Are Entitled to Request

If your disability is not obvious or already known to the landlord, they may request documentation that reliably establishes the two elements above. They may also verify that the provider is a licensed healthcare professional with an actual practice in your state.

Landlords may:

• Ask for a letter from a licensed healthcare provider
• Verify the provider's license through state licensure databases
• Ask clarifying questions if the letter is genuinely ambiguous on one of the two required elements

Landlords may NOT:

• Demand your medical records or full medical history
• Require you to identify your specific diagnosis
• Require documentation from a specific provider type (e.g., only psychiatrists)
• Require you to use a specific third-party verification platform (like PetScreening)
• Charge you any fee to process or review your documentation
• Require your ESA to be "certified," "registered," or trained
• Contact your healthcare provider directly without your consent

The Online ESA Letter Problem

Many ESA letters come from online telehealth services. Some of these are legitimate — they connect you with a licensed therapist who actually evaluates you via video call or detailed questionnaire and genuinely assesses your condition before writing a letter. Others are mills that sell letters after minimal or no clinical evaluation.

HUD guidance acknowledges this distinction. Landlords can question documentation that appears to lack a legitimate clinical basis — for example, a letter issued the same day you paid a flat fee on a website with no actual evaluation. What they cannot do is categorically reject all online or telehealth-sourced letters.

If your letter came from a legitimate telehealth provider who actually evaluated you, and the landlord rejects it solely because it came via email or from an online practice, that rejection is likely invalid. Be prepared to explain the nature of your clinical relationship if challenged.

When Your Documentation Is Challenged

If your landlord challenges your ESA documentation:

1. Ask for the specific deficiency in writing. What exactly is missing? What do they need? Get this in writing.
2. Respond to the specific deficiency. If they say the letter doesn't establish disability-related need, ask your provider to add a sentence addressing that.
3. Don't volunteer unnecessary information. If the letter is adequate and the challenge is pretextual, don't produce additional documentation — challenge the landlord's basis for rejection.
4. If the challenge is bad faith, file a HUD complaint. Demanding medical records, insisting on a specific platform, or refusing valid letters from licensed providers are FHA violations.

Tenant Pet Rights publishes free legal information for renters with assistance animals. We are not a law firm and this is not legal advice.