Who Can Write an ESA Letter?

Psychologists and licensed clinical social workers are common examples. Some doctors and nurse practitioners qualify too.

RealESALetter.com connects you with a licensed mental health professional in your state. This guide checks each license and shows who cannot write one.

Key Takeaways

Six Licenses Qualify: Psychiatrists and psychologists. Clinical social workers and licensed counselors. Marriage and family therapists and psychiatric nurse practitioners.

Some Providers Depend on the State: Other nurse practitioners and physician assistants vary by state. Doctors qualify only after a mental health evaluation.

The License Must Match Your State: The writer must be licensed where you live. Telehealth follows your location during the session.

Some People Cannot Write One: Registered nurses and school counselors. Veterinarians and registry websites.

State Law Decides Who Qualifies: No federal law lists the professions. HUD withdrew its 2020 guidance in 2026.

Which Licenses Can Write an ESA Letter?

Six license types routinely qualify to write an ESA letter. Each one lets the holder assess and treat mental health conditions. People often ask who can prescribe an ESA letter. The answer is the licensed clinician who evaluates you.

Psychiatrist (MD or DO)

A psychiatrist can write an ESA letter. Psychiatrists are medical doctors who specialize in mental health. They can diagnose conditions and prescribe medication. This applies to a psychiatrist you already see as well. The American Psychiatric Association has published guidance for psychiatrists asked to write ESA letters. It covers what to consider before signing one.

Psychologist (PhD or PsyD)

A licensed psychologist can write an ESA letter. Psychologists hold a doctoral degree such as a PhD or PsyD. They are trained in mental health assessment and diagnosis. Many can also see patients in other member states through PSYPACT.

Therapist

A therapist can write an ESA letter when they hold an independent clinical license. "Therapist" is a job title and not a license. The license behind the title is what counts. Look for letters such as LCSW or LPC or LMFT after the name.

Licensed Clinical Social Worker (LCSW)

An LCSW can write an ESA letter. A licensed clinical social worker holds a master's degree in social work. The clinical license allows them to assess and treat mental health conditions on their own. A social worker without the clinical license may not qualify. That depends on state rules.

Licensed Professional Counselor (LPC or LMHC)

An LPC or LMHC can write an ESA letter. Licensed counselors hold a master's degree and a state license in mental health counseling. Many counselors still decline ESA requests. Employer policy and liability concerns are common reasons. The American Counseling Association also advises counselors not to write these letters without specialized training.

Marriage and Family Therapist (LMFT)

An LMFT can write an ESA letter. Marriage and family therapists are licensed to diagnose and treat mental health conditions. Their training focuses on relationships and family systems. An LMFT license qualifies in the same way as an LCSW or LPC license.

Nurse Practitioner (NP or PMHNP)

A psychiatric nurse practitioner can write an ESA letter. A PMHNP is trained to diagnose and treat mental health conditions. Other nurse practitioners depend on state law. States with full practice authority let NPs work without physician oversight. A registered nurse is different and usually cannot write one.

Primary Care Physician (MD or DO)

A primary care physician can write an ESA letter after evaluating your mental health. Any licensed physician (MD or DO) has the legal scope to do this. Many still decline because of clinic policy or limited mental health training. A doctor who already treats your mental health condition is best placed to write one.

Physician Assistant (PA)

A physician assistant can write an ESA letter in some states. PAs practice under state rules that often involve a supervising or collaborating physician. Those rules decide whether a mental health evaluation is within their scope. Check your state rules before you rely on a letter from a PA.

Who Cannot Write an ESA Letter?

Anyone without a license to assess human mental health cannot write a valid ESA letter. These people and services do not qualify:

• Registered nurses and LPNs: In most states they cannot diagnose mental health conditions on their own.
• School counselors: Their role is educational. It is not a clinical license.
• Veterinarians: They treat animals. They do not assess human mental health.
• Chiropractors and physical or occupational therapists: Their licenses cover physical care.
• Life coaches and unlicensed "therapists": They hold no state clinical license.
• ESA registry and certificate websites: A registration or certificate is not an ESA letter.
• Clinicians with an expired license: The license must be active when the letter is signed.
• Friends or family members: A licensed relative still should not write one. Professional ethics codes warn clinicians against treating family or close friends.

Does the Writer Need a License in Your State?

The writer needs a license that is valid in the state where you live. The clinician's home state does not decide this. Your location does.

State Licensing Law

State licensing law decides who can legally write an ESA letter. Each state sets which professions may assess and treat mental health. HUD's 2020 guidance once described which professionals could provide this documentation. HUD withdrew that guidance in 2026. State licensing rules were not affected by that change. Every RealESALetter.com letter lists the clinician's license number and issuing state so a landlord can confirm it with that state's licensing board.

Telehealth Evaluations

A telehealth evaluation follows the same license rule. The clinician must be licensed in the state where you are located during the session. Federal telehealth licensure guidance from HHS states this rule for behavioral health providers.

Interstate Compacts

An interstate compact lets some clinicians practice in other member states. Eligible psychologists can use PSYPACT to offer telehealth across member states. Compact rules differ by profession. Check that the compact covers your state before you book.

Conclusion

A clinician with an active mental health license in your state should write your ESA letter. Psychologists and licensed counselors are the most common choices. Psychiatric nurse practitioners and social workers qualify as well. When you are ready you can start your ESA evaluation with a licensed clinician in your state.