I know this Federal law by heart, but will quote some of it for you?
You do not need to be on SSI or SSD, all you need is a letter from a Doctor stating that you are indeed suffering from a Mental Disability and need an ESA:


This is the Federal Law:
"The Fair Housing Amendments Act of 1988, Section 504 of the Rehabilitation Act of 1973, and Title II of the Americans with Disabilities Act protect the right of people with disabilities to keep emotional support animals, even when a landlord's policy explicitly prohibits pets.

Because emotional support and service animals are not "pets," but rather are considered to be more like assistive aids such as wheelchairs, the law will generally require the landlord to make an exception to its "no pet" policy so that a tenant with a disability can fully use and enjoy his or her dwelling.

In most housing complexes, so long as the tenant has a letter or prescription from an appropriate professional, such as a therapist or physician, and meets the definition of a person with a disability, he or she is entitled to a reasonable accommodation that would allow an emotional support animal in the apartment."

~~~~~~~pax. Theodora