Im trying to find the best esa letter service

Ive been researching this for two weeks and the more I read the more confused I get, so I'm just going to share what I've pieced together and hope someone can fill in the gaps The services that keep coming up as potentially legitimate all seem to require an actual telehealth evaluation with a licensed therapist before issuing any letter. The evaluation has to be substantive enough that the provider can professionally attest to the disability and the therapeutic role of the animal and the therapist apparently needs to be reachable afterward for landlord verification calls. That last part came up in a bunch of housing threads and I hadn't considered it at all before. Then there's a whole other category of sites selling id cards, vest kits and "registration certificates" that apparently carry zero legal weight for FHA housing accommodation. The sites look official enough that people buy the wrong thing and only find out when a landlord rejects it. The question "is american service pets esa letter legit" or "is us service animals esa letter legit" comes up constantly and the answer seems to be: it depends entirely on which specific product you're purchasing from them, some is a real therapist letter, some is the registration stuff. Has anyone actually used one of the legitimate services and had a landlord try to verify it? That seems to be the real test and I can't find many firsthand accounts of what that process actually looks like.