No law we found sets a maximum number of emotional support animals, but that is not the same as "as many as you like". ESAs matter legally almost only in housing, and there each animal is its own accommodation request: Florida, Iowa and Montana let a landlord ask for information about the need for each animal. Since HUD's May 2026 memo, federal enforcement covers only trained animals, so a request for two or three untrained ESAs now depends mostly on your state's law, your landlord and, if it comes to it, a court. Outside housing, ESAs have no special access, so the number is simply a pet question.
Is there a legal limit on emotional support animals?
No fixed number appears in the federal law or in the state ESA statutes we reviewed. The answer is decided case by case, one animal at a time, and almost only in housing.
That is because an ESA has no legal status in most other places. The Department of Justice says emotional support animals "do not qualify as service animals under the ADA" because "they have not been trained to perform a specific job or task", so stores and restaurants can apply their pet rules. Airlines, under the Department of Transportation's 2021 rule, "may treat them as pets." In those places, two ESAs are simply two pets. See can emotional support animals go anywhere?
Why housing is where the number is decided
The Fair Housing Act makes it unlawful to refuse "reasonable accommodations in rules, policies, practices, or services, when such accommodations may be necessary" for a person with a disability to use and enjoy a home (42 U.S.C. 3604(f)(3)(B)). An ESA request is a request to change a pet rule for you. The key words are "reasonable" and "necessary": each animal you ask for has to be tied to a disability-related need, and each one is weighed on its own.
So the useful question is not "how many am I allowed?" but "can my clinician explain what each animal does for my disability, and is that request reasonable for this home?" A first request and a third request are judged the same way, but the third is harder to support.
Can you have 2 emotional support animals? What state laws say
Yes, you can ask for two, and three states spell out how a landlord handles it:
- Florida: "If a person requests to keep more than one emotional support animal, request information regarding the specific need for each animal" (760.27(2)(d)). A landlord may also ask about "the particular emotional support animal being requested".
- Iowa: "If a person requests to keep more than one assistance animal, the landlord may request information for each assistance animal" (216.8B(5)).
- Montana: "If a tenant requests to keep more than one emotional support animal, information for each emotional support animal must be provided" (70-24-114(3)).
All three also let a landlord require proof of licensing and vaccination for each animal. None of them sets a cap. What they do is make each extra animal a separate thing to justify. Other states have their own letter rules; check yours on our state laws pages.
How HUD's 2026 memo affects a request for several ESAs
HUD's 2020 assistance animal notice (FHEO-2020-01) was withdrawn effective September 17, 2025, so it is not current guidance and should not be relied on. On May 22, 2026 HUD's fair housing office said it will "find reasonable cause and recommend charges only for those cases involving animals trained to provide disability-related assistance," and that requests to waive pet policies "for untrained ESAs are not" presumptively reasonable.
The memo even attaches, as an exhibit, an April 2026 finding of no reasonable cause in "a complaint involving three emotional support animals supported by an online form letter". That shows how a multi-animal request resting on thin paperwork is likely to fare with HUD today.
HUD is not the only route. The Fair Housing Act itself did not change, you can still sue privately, and state law still applies. Colorado went the other way in 2026: HB26-1045 presumes that permitting an assistance animal, including an ESA, is a reasonable accommodation once the landlord has had a chance to engage in an interactive process. More in ESA letters for housing after HUD's 2026 change.
Do you need a separate ESA letter for each animal?
Not necessarily a separate document, but the information has to cover each animal. Montana's statute asks for information that "identifies the particular assistance or therapeutic emotional support provided by the specific animal". Florida's asks for "the specific need for each animal". A letter that names one dog and adds "and her other pets" does not meet that.
Ask the clinician who already treats you. If they believe more than one animal helps, the letter should say what each one does for your disability. Some states limit letters in other ways too: Arkansas's ESA letter law covers dogs only, and several states require a relationship of at least 30 days. The details are in ESA letters: who can write one. We do not sell or refer letters, and a registration does not substitute for one: Florida, Iowa and Montana each say a registration, ID card, patch or certificate is not enough to establish the need, ours included.
How many ESAs can you have in an apartment?
As many as your landlord approves or the law requires them to approve, which depends on your state and your animals. The grounds a landlord can rely on grow with each animal:
- Direct threat or damage. The Fair Housing Act does not require housing for someone whose tenancy "would constitute a direct threat to the health or safety of other individuals or whose tenancy would result in substantial physical damage to the property of others" (42 U.S.C. 3604(f)(9)).
- Hardship and reasonableness. Iowa lets a landlord deny a request that would "impose an undue financial and administrative hardship", "fundamentally alter the nature of the landlord's operations", or "is not otherwise reasonable" (216.8B(6)(c)).
- Damage. Florida and Montana make the tenant liable for damage their ESA causes, and every source we have read lets a landlord charge for real damage.
Make one written request that names each animal and includes the supporting information for each, before the animals move in. If you are turned down, see can a landlord deny an emotional support animal?
How is this different from having two service dogs?
Service dogs follow a different rule. For businesses, the Department of Justice answers "Generally, yes. Some people with disabilities may use more than one service animal to perform different tasks," and staff may ask the two questions about each dog. Airlines may limit a passenger to two service animals.
The difference is training. If your dog is individually trained to perform a task for a psychiatric disability, it may be a psychiatric service dog rather than an ESA, with public access. See psychiatric service dog vs emotional support animal.
Before you add another emotional support animal
- Talk it through with your clinician first. The need for each animal has to be real and explainable.
- Read your lease and your state's rules, and ask your landlord in writing before the new animal arrives.
- Budget for each animal's local license and vaccinations, which landlords in Florida, Iowa and Montana may ask to see.
- For flights, each ESA is a pet under the airline's pet rules. See can emotional support animals fly?
Gear does not change any of this. An emotional support vest can ask people to give your dog space, but it is a signal only, and it gives no ESA a right to go anywhere.
Common questions
Can you have 2 emotional support animals?
You can ask for two. No law we found sets a cap, but in housing each animal needs its own disability-related need, and Florida, Iowa and Montana let landlords ask for information about each one.
How many ESAs can you have in an apartment?
There is no fixed number. It depends on what your clinician can support for each animal, your state's law and whether the request is reasonable for that home.
Do I need a separate ESA letter for each animal?
Not always a separate document, but the letter should explain the need for each animal. Montana requires information about the support provided by the specific animal.
Can a landlord deny a second emotional support animal?
Sometimes. Since May 2026 HUD pursues cases only for trained animals, so your state's law and a private lawsuit are the main protections for untrained ESAs.
Can I fly with two emotional support animals?
Only as pets. Airlines may treat ESAs as pets, so each one follows the airline's pet rules and fees.
Can I have more than one service dog?
Generally, yes, if each dog is trained to perform tasks for your disability. Staff may ask the two questions about each dog.
Sources
- HUD FHEO enforcement guidance on animal accommodations, 2026-05-22
- 42 U.S.C. 3604, Fair Housing Act
- Florida Statutes 760.27
- Iowa Code 216.8B
- Montana Code 70-24-114
- Colorado HB26-1045
- DOJ, ADA service animal FAQ (questions 3 and 13)
- DOT final rule on traveling by air with service animals (85 FR 79742)
General information, not legal advice. Policies and laws change; follow the sources. Last checked September 29, 2026.