Is Fast ESA Letter Legit? March 10th, 2021 Fast ESA letter is considered a trusted source for obtaining an ESA letter, as long as your ESA letter is issued by a licensed healthcare professional. Related Posts What is the Best Pet for Anxiety? What is the Easiest Exotic Pet to Own? How to Get an ESA Letter in New York Do Emotional Support Animals Pay Pet Rent? [therapypet_step1_form show_in_mobile="1"]