We live in a decent sized condominium community, of which my wife happens to be the President. There is a similar issue here. No dogs are allowed, but a resident advised that they required a dog because of a medical condition -they presented a letter from their physician and that was all they needed. I don't believe this is a trained "service" animal, I believe the owners condition doesn't require that ...just that they need a dog.
So technically, every person in this community could have a dog assuming their doctor writes a letter for say a condition like anxiety. The attorneys for the association are looking into it, but I'm thinking there is nothing the association can do. So what happens to owners with severe allergies -are they forced to leave? It's an interesting issue from any angle.
If a guest suffers from anxiety and has a doctors letter indicating a dog is required -would Disney have to allow them and the dog in the park? Just curious.....