The FHA disability definition has shifted significantly over the past decade. Courts have broadened what qualifies. HUD has issued guidance that challenges older, narrower interpretations. For landlords, HOA boards, and property managers, this evolution creates real compliance risk if your policies haven’t kept pace. This article explains where the definition stands now, what conditions qualify that might surprise you, and how to handle accommodation requests without running afoul of federal law.
What Counts as a Disability Under the FHA
The Fair Housing Act defines disability across three prongs. A person qualifies if they have a physical or mental impairment that substantially limits one or more major life activities, have a record of such an impairment, or are regarded as having such an impairment.
That last prong matters more than most housing providers realize. Even if a resident does not have a diagnosed condition, treating them as though they do can trigger FHA protections. The “regarded as” standard creates liability exposure that pure medical-documentation policies don’t account for.
“Major life activities” under federal law include walking, seeing, hearing, breathing, learning, concentrating, communicating, sleeping, caring for oneself, and the operation of major bodily functions. Courts have read this list broadly. A condition that interferes with sleep or emotional regulation qualifies just as much as one affecting mobility.
How HUD Interprets the Disability Standard
HUD’s 2020 guidance on assistance animals remains the operative federal framework for housing providers in 2026. That guidance made clear that HUD aligns with the ADA Amendments Act standard, which Congress passed specifically to reverse court decisions that had narrowed disability definitions too much.
Under HUD’s current interpretation, the “substantially limits” threshold is low. A condition does not need to severely restrict a major life activity. It only needs to substantially limit it. HUD guidance instructs that this determination should be made without regard to mitigating measures like medication, therapy, or learned coping strategies.
This is a critical point for housing providers. A resident who manages their anxiety well through medication still qualifies as disabled under the FHA if the underlying condition substantially limits a major life activity without that medication. You cannot deny a request on the basis that the person appears to be functioning fine.
For a plain-language breakdown of what HUD’s guidance requires from property managers, see our overview of HUD assistance animal guidance.

Temporary and Situational Conditions
One of the most significant areas of legal evolution involves temporary conditions. The traditional view was that a disability had to be permanent or long-term. Courts and HUD have moved away from that position.
HUD’s guidance acknowledges that some conditions are episodic or in remission but still qualify as disabilities when they would substantially limit a major life activity if active. Depression that comes and goes, PTSD with acute flare-ups, and anxiety disorders tied to specific triggers all fall into this category.
Courts have also extended protections to situationally triggered conditions. A veteran whose PTSD symptoms are manageable in most settings but debilitating in high-stress environments qualifies for accommodation even if they appear stable day-to-day. Housing providers who deny requests because a condition seems intermittent are taking on significant legal risk.
The practical implication is this: your intake process for accommodation requests cannot be built around permanence or visibility. The question is whether the condition substantially limits a major life activity, not how often or how visibly it does so.
The Broadening Scope of Mental Health Conditions
Mental health conditions now represent a large share of support animal accommodation requests. Anxiety disorders, depressive disorders, PTSD, OCD, bipolar disorder, and adjustment disorders are among the most frequently documented conditions under DSM-5 diagnostic criteria.
Courts have consistently upheld that mental health conditions qualify as disabilities under the FHA when they substantially limit a major life activity. Sleeping, concentrating, interacting with others, and regulating emotions are all recognized as major life activities. A diagnosis that affects any of these qualifies.
Housing providers sometimes push back harder on mental health requests than on physical disability requests. That disparity itself can constitute disability discrimination. HUD expects accommodation requests tied to mental health conditions to receive the same procedural treatment as any other disability-based request.
As a 501(c)(3) nonprofit healthcare provider, TheraPetic® Healthcare Provider Group works to ensure that individuals with legitimate mental health conditions have access to properly documented support animal letters, helping housing providers receive clear, verifiable records that hold up under legal review.
What Housing Providers Can Legally Ask
Understanding the expanded disability definition is only half the equation. Housing providers also need to know what verification they can request without crossing into discriminatory conduct.
HUD’s guidance draws a clear line. If a disability is obvious or the documentation provided is sufficient on its face, you cannot demand additional medical records, diagnoses, or treatment history. When disability is not obvious and the need for accommodation is not apparent, you may request reliable documentation from a licensed healthcare provider.
That documentation does not need to disclose the specific diagnosis. It needs to confirm that the individual has a disability and that the animal provides disability-related support. Requesting more than this opens the door to a fair housing complaint.
Our verification screening portal is designed specifically for housing providers who need to confirm the authenticity of TheraPetic® documentation without conducting unauthorized medical inquiries. It provides a legally compliant way to review records without overstepping federal standards.

Where Housing Providers Go Wrong
Several consistent errors appear in fair housing complaints filed against landlords and property managers. Knowing them helps you build a cleaner process.
Requiring breed or weight exceptions to go through a separate approval process. Once a support animal accommodation is granted, breed and weight restrictions in your lease do not apply. Treating large-breed support animal requests as a separate category requiring extra scrutiny violates HUD guidance.
Applying a “no pets” policy to support animals. Support animals are not pets under federal law. A blanket no-pet policy does not override an FHA accommodation obligation. Pet fees and pet deposits also cannot be charged for support animals, though housing providers can seek compensation for actual damage caused by the animal after the tenancy ends.
Demanding specific diagnoses. Asking a resident to name their diagnosis or provide clinical records goes beyond what HUD permits. A letter from a qualified healthcare provider confirming disability and therapeutic need is sufficient.
Delaying response without a defined process. Unreasonable delays in responding to accommodation requests can themselves constitute a fair housing violation. You should have a written procedure with timelines in place before requests arrive.
Reviewing Support Animal Documentation
Documentation quality varies widely. Housing providers have a right to confirm that the documentation they receive is legitimate, and that right is specifically acknowledged in HUD’s guidance.
Red flags include letters from providers who have no clinical relationship with the resident, letters purchased online without any evaluation, and letters that use boilerplate language without individualized clinical detail. HUD has explicitly warned against online operations that sell letters without conducting a real assessment.
TheraPetic® documentation is issued only after a clinical evaluation conducted by our Licensed Clinical Doctors. Every letter is tied to a specific individual, references the therapeutic function of the animal, and is verifiable through our portal at go.mypsd.org. Housing providers can confirm authenticity without requesting additional records from the resident.
If you receive documentation that appears generic or lacks verifiable provider credentials, you have grounds to request clarification. HUD’s guidance supports asking for confirmation that the letter comes from a licensed provider with knowledge of the individual’s condition. You cannot demand the full clinical file, but you can verify the provider is real.
For further context on what makes a support animal letter legally adequate under current federal standards, visit the HUD assistance animals guidance page directly.
Practical Steps for Compliance in 2026
The disability definition under the FHA is broader than it was ten years ago. Your accommodation review process needs to reflect that. Here is what a compliant process looks like in practice.
Build a written accommodation request policy that accepts both physical and mental health conditions equally. Train your leasing staff on the three-prong disability definition and on what questions are and are not permissible during the review process.
Create a documentation checklist based on HUD standards: confirmation of disability, confirmation of a disability-related need for the animal, and verifiable provider credentials. Anything beyond that is outside your legal authority to require.
Set a response timeline and stick to it. Document every step of your review process in writing. If you deny a request, provide a written explanation grounded in specific, non-discriminatory reasoning. Vague denials are difficult to defend in a fair housing investigation.
When documentation arrives from TheraPetic® Healthcare Provider Group, use the verification portal at go.mypsd.org to confirm authenticity. This protects both the resident’s privacy and your compliance record. Questions about documentation review can be directed to help@mypsd.org or (800) 851-4390.
The law in this area continues to develop. Housing providers who build flexible, documentation-focused processes now are far better positioned to handle the accommodation requests that arrive tomorrow.
Written By
Ryan Gaughan, BA, CSDT #6202 , Executive Director
TheraPetic® Healthcare Provider Group • About • LinkedIn • ryanjgaughan.com
Clinically Reviewed By
Dr. Patrick Fisher, PhD, NCC , Founder & Clinical Director • The Service Animal Expert™
Editorial Review
This article was reviewed by Dr. Patrick Fisher, PhD, NCC on September 9, 2026 for accuracy, currency, and clarity. Content is updated when laws or guidance change.