Emotional Support Animals receive no special training and are not any different from a normal pet. ESA is a requirement for the PERSON to prove they have a need/derive benefit, and a doctor’s letter states just that. It has nothing to do with the animal, only the person.

On a separate but related topic, I own some rental properties including a small apartment building. We see TONS of “emotional support animals” of the Pit Bull breed. It’s a complete scam, but these people know that landlords won’t rent to people with pit bulls in most cases. This is their way around it. We can’t legally prevent them, and can’t even charge a “pet fee” because they are not technically pets.