ESA and service dog guides.
Clear, sourced answers on letters, housing rights after HUD's 2026 change, costs, service dogs and travel. Every guide is dated and updated when the law changes.

Start with what changed in 2026.
HUD now enforces animal accommodation complaints only for trained animals, while state laws, private lawsuits and Section 504 still apply. Our flagship guide explains what that means for you.
Read the 2026 HUD guide ↗The essentials
What is an ESA letter? What it can and cannot do in 2026
What is an ESA letter? Learn what it does for housing after HUD's 2026 change, what it cannot do on flights or in public, and how to get one that holds up.
Read guide ↗ESA vs service dog vs therapy animal: the differences that matter
ESA vs service animal vs psychiatric service dog vs therapy animal: training, documentation, housing, public access and air travel compared in one table.
Read guide ↗Can you have more than one emotional support animal?
Need an ESA letter for two dogs or several animals? Learn when one letter works, what Montana and other states require, and pricing for two to four pets.
Read guide ↗Emotional support cats: letters, housing and travel rules
Can a cat be an emotional support animal? Learn how an ESA letter for a cat works, why there is no registry, and how housing and travel rules apply in 2026.
Read guide ↗Emotional support dogs: ESA letters, breed rules and state laws
Need an ESA letter for your dog? See how an emotional support dog is documented, how breed and size rules work in 2026, and the California and Arkansas rules.
Read guide ↗The process
How an online ESA evaluation works, step by step
How to get an ESA letter online the right way: the free assessment, clinician review, phone or video consults, delivery, and why same day letters are rare.
Read guide ↗How to prepare for your ESA evaluation
What to expect in an ESA evaluation: the assessment questions clinicians commonly ask, what to have ready, and how to describe your animal's role honestly.
Read guide ↗How to ask your therapist or doctor for an ESA letter
Want an ESA letter from your therapist or doctor? Use our short script, learn what the letter should include, and see your options if they decline to help.
Read guide ↗Do ESA letters expire? How long a letter is good for
Do ESA letters expire? Federal law sets no date, but Iowa and Arkansas set yearly rules and many landlords want a recent letter. See your renewal options.
Read guide ↗How long does an ESA letter take? Timelines by state
How long does an ESA letter take? In most states it is 1 to 3 days, but some require a 30 day relationship first. See the real timeline for your state here.
Read guide ↗Housing
HUD ESA rules in 2026: what changed for renters, students and landlords
HUD ESA rules in 2026 explained: the May 22 memo, the 2025 withdrawal, what still protects renters and students, and which states kept ESA protections.
Read guide ↗How to ask your landlord for an ESA accommodation in 2026
Sending an ESA letter to your landlord? Get a written request template, learn the right timing, and see which records to keep under 2026 HUD and state rules.
Read guide ↗What can a landlord ask about your ESA? Limits and responses
Can a landlord ask for your ESA diagnosis or call your clinician? See what landlords may verify, what state laws bar, and how to respond calmly in writing.
Read guide ↗Can landlords charge pet rent or deposits for an ESA in 2026?
Can landlords charge pet fees, pet rent or a deposit for an ESA after HUD's 2026 memo? See the Henderson case, state fee bans and who pays for damage.
Read guide ↗ESA letters for college housing: timelines, roommates and rules
Need an ESA letter for college housing? Learn how Section 504 still applies after HUD's 2026 memo, when to apply, and what documentation schools want.
Read guide ↗Moving with an ESA: new landlords, new states, new letters
Moving with an ESA? Learn when your letter can go to a new landlord, why a new state often needs a new evaluation, and what California requires for dogs.
Read guide ↗ESA lease addendum: what to check before you sign
Reviewing an ESA lease addendum? Check fees, liability, insurance, cleaning, behavior and renewal clauses, spot red flags, and learn to negotiate in writing.
Read guide ↗Choosing care
How to spot a legitimate ESA letter service before you pay
How to tell a legitimate emotional support animal letter service from a letter mill in 2026: red flags, questions to ask and what a real letter should show.
Read guide ↗How to verify an ESA provider's license in your state
How to check an ESA provider license in your state with board lookups and the NPI registry, plus what a valid letter should show. It takes about five minutes.
Read guide ↗ESA certificates, ID cards and vests: why they do not count
ESA certificates, emotional support animal ID cards, vests and registry listings explained: why they carry no legal weight and what documentation counts.
Read guide ↗How much does an ESA letter cost in 2026?
ESA letter cost in 2026: typical prices for online evaluations, renewals and PSD letters, hidden fees to watch, and why a free ESA letter is a warning sign.
Read guide ↗Who can write an ESA letter? Provider types and state rules
Who can write an ESA letter? Compare therapists, psychologists, psychiatrists, doctors and nurse practitioners, plus the state license rules for each.
Read guide ↗Mental health
What disabilities qualify for an emotional support animal?
What disabilities qualify for an emotional support animal? Learn the legal test, conditions clinicians consider, and why no diagnosis qualifies on its own.
Read guide ↗Emotional support animal for anxiety: how it helps and how to qualify
Thinking about an emotional support animal for anxiety? Learn how an ESA may help with GAD, panic and social anxiety, what research shows, and how to qualify.
Read guide ↗Emotional support animal for depression: what to know before you apply
An emotional support animal for depression can add routine and connection. See what research shows, when a trained PSD fits, and how an ESA evaluation works.
Read guide ↗Emotional support animal or psychiatric service dog for PTSD?
Choosing an emotional support animal for PTSD or a service dog? Compare training, VA research, housing after HUD's 2026 memo, and how evaluation works.
Read guide ↗Service dogs
Psychiatric service dog tasks: examples for anxiety, PTSD, depression and more
Psychiatric service dog tasks explained: trained responses for anxiety, PTSD, depression and bipolar disorder, why tasks matter legally, and an example table.
Read guide ↗Can you train your own psychiatric service dog? Steps, timeline and documentation
Can you train your own psychiatric service dog? Yes. See what the ADA requires, PSD training stages and timelines, public access readiness and housing papers.
Read guide ↗Can an emotional support animal become a psychiatric service dog?
Can an emotional support animal become a service dog? Yes, once a dog is trained to do tasks. See what changes legally, the timeline, and why cats cannot.
Read guide ↗Travel and public places
Can you bring an emotional support animal into stores and restaurants?
Can you bring an emotional support animal into stores like Walmart? See what the ADA says, how store pet policies work, and the two questions staff can ask.
Read guide ↗Flying with an emotional support animal in 2026: what airlines allow
Flying with an emotional support animal in 2026? See why airlines treat ESAs as pets, typical cabin fees, and how trained service dogs fly with the DOT form.
Read guide ↗Hotels, vacation rentals and road trips with an emotional support animal
Hotel ESA rules explained: when hotels can charge pet fees for an emotional support animal, how vacation rentals differ, and what to pack for a road trip.
Read guide ↗