A property manager reads your letter for about thirty seconds. In that time they are looking for a small number of things, and if one is missing the request goes back to you — often without a reason attached. The frustrating part is that the reason is usually mundane and fixable, and you can find it yourself before anyone else does.
The eight gaps that cause most refusals
| The gap | Why it sinks the request | What to do |
|---|---|---|
| No licence number or state of licensure | The housing provider has no way to confirm the author is a licensed clinician at all, so refusing costs them nothing. | Check both fields before sending. Ask your clinician to add them if missing. |
| No evaluation behind it | A document produced minutes after a web form evidences a purchase, not an assessment. Property managers recognise the templates. | Work with a clinician who actually evaluates you — in person or by telehealth. |
| Clinician licensed in the wrong state | Licensure is state-based, and some states say so in statute. Florida accepts an out-of-state practitioner only where they have provided in-person care at least once. | Use a clinician licensed where you live. If you moved, get new documentation. |
| No statement of disability | Without it there is nothing for the accommodation to attach to. The letter has to say a qualifying disability exists — not what it is. | Ask for the sentence to be added. It does not require naming your condition. |
| No link between the disability and the animal | "The patient would benefit from a pet" is not a disability-related need. This is the gap that fails otherwise perfect letters. | Ask the clinician to describe what the animal does for the symptoms you have. |
| Documentation too old to show a current need | A housing provider may ask for information showing the need is current. A letter from three years ago does not. | Renew before a lease renewal or a move. |
| No letterhead or contact details | Verification becomes impossible without a practice address, phone number or email. | Ask for it on practice letterhead. |
| A registration or certificate number on the page | There is no government register of emotional support animals, so the number signals a product rather than a credential — and invites a closer read of everything else. | Use documentation from a clinician. Do not buy add-ons. |
Why verifiability decides it
When a disability or the need for an animal is not obvious, a housing provider is entitled to ask for reliable information supporting both, and to take reasonable steps to confirm it. That is the whole game. A letter that cannot be checked is not evidence a landlord can act on, whatever it says — and a refusal on those grounds is defensible.
So the practical test to apply to your own documentation is simple: could a stranger, with nothing but this page, confirm that a real licensed clinician wrote it? That means a name, a licence type, a licence number, a state, and a way to reach the practice. Everything else in this article is downstream of that question. The complete element-by-element breakdown is in ESA letter requirements explained, and our checklist with worked examples shows the difference on the page.
The instant-certificate problem
A great many refusals come from one product category: sites that take a payment, run a short questionnaire and return a document within minutes, often with a certificate, an ID card and a “registration number” alongside it.
This is not a criticism of telehealth. Telehealth is an accepted way to deliver care in every state, and a video evaluation with a clinician licensed where you live produces documentation that stands up exactly as well as an in-person one. The problem is narrower and it is specific: no clinician assessed you. Documentation bought online without an evaluation has long been treated as insufficient on its own to establish a non-obvious disability, and property managers have had years of practice spotting it.
- A promise of approval before anyone has evaluated you. Nobody can know that yet.
- No way to speak to a clinician at any point in the process.
- No licence number or state named on the finished document.
- An upsell for a vest, an ID card or a registration — none of which creates any right.
- A claim that the animal is “registered” with a national database. No such official database exists. See our review of online ESA services.
Real clinician, wrong wording
The rejections that surprise people most are the ones where the clinician is genuine, licensed, and has treated them for years. These almost always come down to a missing sentence rather than a missing credential.
The two sentences that have to be there
First, that you have a disability as fair-housing law understands it — a physical or mental impairment that substantially limits one or more major life activities. Not the diagnosis; the conclusion. Second, that this animal relates to it: what it does, for which symptoms, in your actual life. A letter can be beautifully formatted, signed and dated and still fail if the second sentence is a generic line about companionship.
Two smaller things that draw questions
A letter addressed “To Whom It May Concern” with no indication that a provider-patient relationship exists reads as a form. And a letter that never names the species is a problem later, particularly if a second animal appears; a housing provider is entitled to ask how the second animal relates to the disability.
Old documentation and the twelve-month myth
No federal law expires an ESA letter
Nothing in the Fair Housing Act or its regulations sets a validity period for assistance-animal documentation. The twelve-month figure that circulates everywhere is a housing-provider convention, built on a real entitlement: a landlord may ask for information showing the need is current, and a letter from several years ago does not show that.
One state does write an annual duty into law — Arkansas requires the provider to evaluate the need at least once a year and to review it before renewing documentation (Ark. Code Ann. §20-14-1003). That is a duty on the clinician, not a federal expiry date on your letter.
The practical consequence is the same either way: refresh your documentation before a lease renewal or a move, because those are the two moments assistance-animal files get audited. Timing is covered in when to renew your ESA letter.
Lawful and unlawful grounds to refuse
| Can support a refusal | Cannot, on its own |
|---|---|
| The documentation genuinely cannot be verified as coming from a licensed clinician | "We have a strict no-pets policy" |
| This specific animal is a direct threat to the health or safety of others, and no other accommodation reduces it (42 U.S.C. §3604(f)(9)) | The breed or species the landlord dislikes, absent an individual assessment of this animal |
| This specific animal would cause substantial physical damage to others' property | A building weight limit |
| The property is exempt under 42 U.S.C. §3603(b) — an owner-occupied building of four units or fewer where the owner lives in one, or a single-family house let by an owner with no more than three such houses and no broker | Refusing to disclose your diagnosis or hand over medical records |
| You decline to provide any supporting information at all where the disability is not obvious | Not using the property's own medical form; not having a registration number, certificate, ID card or vest |
What the 2026 enforcement change did — and did not do
2025–2026 federal ESA policy timeline
- September 17, 2025: HUD withdrew guidance documents FHEO-2020-01 and FHEO-2013-01, removing the documentation framework landlords and tenants had relied on for a decade.
- May 22, 2026: HUD issued an enforcement memorandum directing its Office of Fair Housing and Equal Opportunity to find reasonable cause only where an animal is individually trained to perform work or tasks related to the complainant's disability — the standard the ADA applies to service animals.
- What did NOT change: the Fair Housing Act itself (42 U.S.C. §3604(f)) and its regulations, your right to bring a private FHA suit, and state and local fair-housing laws, which the memorandum expressly leaves alone.
It is worth being precise, because a lot of what is written about this is wrong in both directions. The 2020 and 2013 HUD notices were withdrawn on September 17, 2025. The trained-task enforcement standard arrived separately, on May 22, 2026, in a memorandum to HUD's own Office of Fair Housing and Equal Opportunity.
That memorandum is an enforcement policy. It did not amend the Fair Housing Act or its regulations. It does not bind a court. It expressly preserves private rights of action, and it expressly does not address state and local laws that take a broader approach. What it changes in practice is where a disputed refusal should go first — a state or local fair-housing agency, rather than a federal complaint about an untrained animal. Our full explainer on the 2026 HUD change covers it in detail, and are ESA letters still valid after the HUD change? answers the question most people actually have.
Fixing a rejection
- 1Ask for the reason in writing. Politely, and ask for it to be specific. Without it you are guessing, and the answer also becomes part of the record.
- 2Check the four fields. Licence number, licence type, state, practice contact details. Most refusals stop here.
- 3Check the two sentences. Disability stated; animal linked to it, specifically.
- 4Check the date. If it is over a year old, renewing is faster than arguing.
- 5If it is not a paperwork problem, escalate correctly. State or local fair-housing agency first; private Fair Housing Act suit remains available; a fair-housing attorney or tenants' organisation can tell you which fits your state.
- 6Do not remove the animal or agree to pet fees first. Understand which kind of refusal you are dealing with before you concede anything.
Step-by-step help with the submission itself is in how to request an ESA accommodation from your landlord, and responding to a denial has wording you can adapt.
Sources & further reading
- Fair Housing Act, 42 U.S.C. §3603(b), §3604(f) and §3604(f)(9)
- HUD FHEO — withdrawal of Notices FHEO-2020-01 and FHEO-2013-01 (September 17, 2025) and the assistance-animal enforcement memorandum (May 22, 2026)
- Ark. Code Ann. §20-14-1003 — 30-day relationship, annual evaluation and annual review
- Fla. Stat. §760.27 — supporting information, out-of-state practitioners, direct-threat denial
- Cal. Health & Safety Code §122318 (AB 468); Mont. Code Ann. §70-24-114