Clarity before
the paperwork.

Companion Letter is an independent information website about emotional support animal letters, evaluations, and housing questions in the United States.

Our purpose is to help readers understand the decisions involved: whether to seek an evaluation, how to assess an online service, what documentation means, and why a housing outcome is a separate question.

How to use the content

Begin with the topic that matches your need. General guides explain practical questions; state and city guides identify relevant sources and local questions. Legal pages include the sources and the date they were consulted. Laws, guidance, and provider terms can change after that date.

The content is educational. It is not a clinical evaluation, individualized legal advice, or a substitute for a qualified professional reviewing your circumstances. No clinician review is claimed.

Original content and imagery

The writing was created for this site. Images are original AI-generated illustrations of everyday life with animals. People in those images are not patients, named customers, clinicians, or testimonials. The site does not present invented reviews or personal treatment experiences.

How we review providers

Provider guides use the public service pages and terms identified in their sources. They separate advertised information from questions that need an individual quote. We have not purchased clinical evaluations or independently verified customer ratings, acceptance rates, or support response times. Where a provider’s published information conflicts, we identify the discrepancy. No star rating or comparative testing claim is implied.

We compare the same practical concerns: professional evaluation, complete cost, timing, and follow-up. Legal information uses government sources where available. Material findings should be checked again when prices, policies, or laws change.

Our provider relationship

ESA Pet is the commercial evaluation provider linked from this site. We may receive an affiliate commission from qualifying purchases. That relationship is disclosed near provider calls to action and in our affiliate disclosure.

We do not collect medical histories, process orders, or issue letters. Questions about a provider’s appointments, refunds, or documentation should be directed to that provider through its own support channels.

Start with a useful question

Visit the guide collection or read the current housing update.