What does the letter include?

For clients For landlords Last reviewed: November 14, 2026

Short answer

Your letter is on the reviewing professional's letterhead with their signature, license type, license number, state of licensure, NPI number and office contact details, so a landlord can check them.

The professional's details

  • Their letterhead, with their office address, phone and fax.
  • Their signature and name.
  • Their license type, license number, state of licensure and license issue date.
  • Their NPI number.

A landlord can use these to check the professional, and our Free Letter Verification for Landlords links to their state licensing board.

Your letter's details

  • The date the letter was signed. It shows as current in our verification for one year from that date. Does my letter expire?
  • Its Letter ID, the MPC ID your landlord uses to check it.
  • Your name, and the professional's recommendation that you have an emotional support animal.
  • Your animal's type, name, breed and approximate weight, if you've linked your animal. Why link your pet.

Health information on the letter

Your letter names the condition the professional found (for example, anxiety). It doesn't include a diagnosis code. Share your letter only with people who need it, such as your landlord. Our verification never shows anything about your health.