Before reading on, however, please note that, while many of the most common conditions that qualify people for an emotional support animal are listed, these are not the only qualifying conditions for an ESA. As long as you can get a doctor or other health professional to write and sign a letter attesting that you have a disability that impairs your ability to live independently for which an emotional support animal would mitigate the symptoms of that disability causing that impairment, you are allowed to have an ESA.