ESA lease addendum: what to check before you sign

What is an ESA lease addendum?

An ESA or assistance animal addendum is a short document attached to your lease after your landlord approves your accommodation. It usually names the animal, confirms the approval and sets rules on care, conduct, damage and documentation. Many properties use one standard form for all assistance animals.

Addenda deserve extra attention in 2026. After HUD's May 22, 2026 memo stopped treating untrained ESA requests as presumptively reasonable for federal enforcement, landlords may revisit their forms, and some may add fees or stricter terms. Whatever the form says, the addendum you sign becomes the rulebook for your animal at that property. See our guide to HUD's 2026 guidance for the federal background.

What should you review in an ESA addendum?

Read every clause, even if the leasing office calls the form standard. These are the parts that most often cause disputes later.

Fees, deposits and cleaning charges

An addendum cannot make a barred fee legal. Illinois, Virginia, Kentucky, Utah and Wisconsin statutes bar fees, deposits or extra compensation for assistance or support animals, and Indiana, Maine and Minnesota have similar rules. In states without a statute, fees are more contested now: HUD's 2026 memo cited Henderson v. Five Properties, a 2025 federal decision holding that a landlord did not have to waive a $400 animal fee on those facts.

Look for fees under other names. A mandatory move out cleaning charge or a monthly animal amenity fee can work like a pet fee. Our article on pet fees and accommodation requests has a state table.

Liability, insurance and damage

Paying for damage your animal causes is standard. Virginia and Kentucky statutes tie your responsibility to what residents with pets would owe, Wisconsin's adds sanitation, and Utah lets landlords recover reasonable repair costs. A clause saying you will pay for actual, documented damage is normal.

Be more careful with broad indemnity language that makes you responsible for any claim connected to the property, or with insurance demands far beyond what other residents carry. Kentucky's KRS 383.085 and a 2025 Arizona law limit landlords' liability for injuries caused by animals allowed as accommodations, which is one reason some addenda ask for liability coverage. Ask what amount is required and get a quote before you sign.

Behavior and renewal clauses

Reasonable conduct rules are normal: keep the animal leashed or carried in common areas, clean up waste, prevent repeated disruptive noise and do not leave it unattended for long stretches. Montana's statute, for example, allows a landlord to deny an animal that poses a direct threat that cannot be reduced by another reasonable accommodation, which ties decisions to the specific animal.

Renewal clauses vary. Some require an updated letter each lease term, and Iowa's statute already sets a 12 month window for written findings. Make sure the clause says what documentation is required and does not ask for your diagnosis or records. Our guide to ESA letter expiration covers renewals.

How do you negotiate changes in writing?

Most landlords will discuss a clause or two if you are specific and polite. Put every request in writing so the exchange is dated.

• Read the addendum fully before signing
• Mark the specific clauses you want changed and suggest replacement wording
• Cite your state statute when a fee or term conflicts with it
• Send requests by email or through the tenant portal
• Get any agreed change written into the addendum itself, not just promised
• Keep a signed copy of the final version

A short note you can adapt

"I am happy to sign the assistance animal addendum. Before I do, I would like to discuss two items. Section 4 lists a $300 animal fee, which I understand [state statute] does not allow for assistance animals. Section 7 asks me to indemnify the property for any claim; could we limit that to damage or injury caused by my animal?"

If the landlord refuses changes you believe the law requires, ask for that position in writing and contact your state fair housing agency, listed on our state law hub.

An addendum follows an approved accommodation, and approval starts with documentation. If you need a letter, start the free assessment. A clinician licensed in your state decides whether documentation is appropriate, and Pet ESA Service helps your housing provider verify the letter at no extra charge.