To get a legitimate emotional support animal (ESA) letter, you need a licensed mental health professional to evaluate you, confirm you have a qualifying mental health condition, and write a letter stating that an emotional support animal helps alleviate your symptoms. The letter must be on the provider’s professional letterhead and include their license information. Here’s how the process works from start to finish.
What an ESA Letter Actually Does
An ESA letter is a document from a licensed health professional that serves as your formal request for a reasonable accommodation under the Fair Housing Act. With a valid letter, your landlord must allow your emotional support animal even if the property has a no-pets policy. They also cannot charge you a pet deposit or pet fee for the animal.
It’s important to know what an ESA letter does not do. Since 2021, airlines are no longer required to accommodate emotional support animals on flights. The Department of Transportation now defines service animals exclusively as dogs trained to perform specific tasks for a person with a disability. Emotional support animals, comfort animals, and companionship animals are explicitly excluded. Some airlines may still allow ESAs at their discretion, but none are legally obligated to.
Who Can Write the Letter
Any licensed health care professional with the authority to assess mental health conditions can write an ESA letter. This includes psychiatrists, psychologists, licensed clinical social workers, licensed marriage and family therapists, licensed professional counselors, and primary care physicians. The key requirement is that the professional is licensed in your state and has personal knowledge of your condition through an established clinical relationship.
If you already see a therapist or psychiatrist, that person is your simplest path. They know your history, understand your symptoms, and can write the letter based on your existing treatment. If you don’t currently have a provider, you’ll need to establish care with one, which brings us to the next step.
The Evaluation Process
Getting an ESA letter involves two things your provider needs to determine. First, that you have a chronic mental health condition as defined in the DSM-5 (the standard diagnostic manual used in the U.S.) that substantially limits your functioning in one or more areas of life. Second, that an emotional support animal will specifically alleviate those limitations.
Common qualifying conditions include major depression, generalized anxiety disorder, PTSD, panic disorder, social anxiety, bipolar disorder, and obsessive-compulsive disorder. But having a diagnosis alone isn’t enough. The standard is that you require the presence of the animal to function or remain psychologically stable, not simply that you feel happier around your pet or have an emotional attachment to it. Your provider needs to connect your specific symptoms to the specific benefit the animal provides.
If you’re starting with a new provider, expect at least one thorough evaluation session. Some states require more. California, for example, requires a client-provider relationship of at least 30 days before a professional can write ESA documentation. The law doesn’t mandate a specific number of sessions during that period, but the 30-day waiting period is firm. Other states may have similar rules, so check your state’s requirements.
What a Valid Letter Must Include
A legitimate ESA letter should contain all of the following:
- Your full name, confirming you are a patient under the professional’s care
- A statement that you have a qualifying condition recognized in the DSM-5 that substantially limits a major life activity (the letter should not disclose your specific diagnosis)
- A direct recommendation for an emotional support animal, such as a statement that the animal mitigates symptoms of your condition
- The provider’s license type, number, and issuing state
- The provider’s full name, signature, and contact information on professional letterhead
- The date of issuance (and often an expiration date, typically one year)
There is no required format. HUD has confirmed that ESA documentation does not need to follow a specific template or be submitted on any particular form. What matters is that the content is there and the provider is legitimate.
Telehealth Appointments Are Valid
You don’t necessarily need an in-person visit. HUD recognizes that documentation may be reliable when provided by legitimate, licensed health care professionals delivering services remotely, including over the internet. The distinction is between a real clinical evaluation conducted via telehealth and a quick online questionnaire that rubber-stamps a letter for a fee. The former is valid. The latter is not.
If you use a telehealth service, make sure the provider is individually licensed in your state, conducts a real clinical assessment, and establishes an ongoing relationship with you rather than issuing a letter after a five-minute exchange.
How to Spot an ESA Scam
The ESA letter market is full of fraudulent services, and paying for one can leave you with a document your landlord has every right to reject. HUD has specifically stated that documentation from websites selling certificates, registrations, or licensing documents to anyone who answers a few questions or does a brief interview and pays a fee is not sufficient to establish a disability-related need.
Red flags to watch for:
- Instant approvals. A legitimate evaluation takes time. If a site promises a letter within minutes or hours of filling out a form, it’s not a real clinical assessment.
- “Registration” or “certification” services. There is no official registry for emotional support animals. Any website claiming to register your animal or provide a certificate as proof of ESA status is misleading.
- No established relationship. If you never spoke with a licensed professional who has personal knowledge of you through an ongoing therapeutic relationship, the document is unenforceable.
- Extremely low prices. A real clinical evaluation costs what a therapy session costs in your area. A $49 letter from a website you’ve never interacted with before is a waste of money.
- Vests, ID cards, or tags sold alongside the letter. These items have no legal standing. Legitimate providers don’t sell pet gear.
Presenting the Letter to Your Landlord
Once you have your letter, you submit it to your housing provider as a reasonable accommodation request. Your landlord can ask for documentation if your disability and your need for the animal aren’t readily apparent, but they cannot ask for your specific diagnosis, your full medical records, or details about your treatment. The letter itself is the documentation.
A landlord can legally deny an ESA request only under narrow circumstances: if the specific animal poses a direct threat to the health or safety of others, if it would cause significant physical damage to the property, if granting the request would impose an undue financial or administrative burden, or if it would fundamentally alter the nature of the housing provider’s operations. A general dislike of animals or a blanket no-pets policy is not a valid reason to deny the request.
If your landlord has already granted your ESA accommodation, they cannot later reassess or revoke it. Your letter may have an expiration date (commonly one year), so plan to renew it with your provider before it lapses, particularly if you’re renewing a lease or moving to a new property.
Step-by-Step Summary
- Identify a licensed provider. Use your current therapist, psychiatrist, or doctor. If you don’t have one, find a licensed mental health professional in your state, either in person or via a legitimate telehealth platform.
- Schedule an evaluation. Be honest about your symptoms and how an animal helps you manage them. This is a clinical assessment, not a formality.
- Allow time for the relationship. In states like California, you’ll need at least 30 days of an established client-provider relationship before the letter can be issued.
- Receive and review your letter. Confirm it includes your name, the provider’s license details, a statement about your qualifying condition, a recommendation for the ESA, the date, and a signature on professional letterhead.
- Submit the letter to your landlord. Keep a copy for your records. Your landlord should respond to your accommodation request in a reasonable timeframe.