Reddit's askhotels group is a good source of information about this subject matter. Oftentimes, hotel employees will engage in discussions along the lines of "what does your hotel do?".
Apparently, it is believed to be commonplace that people bring their pets and fraudulently say that they're necessary service animals. And there's no way of telling if the dog (or miniature horse) has really been trained to detect seizures developing or low blood sugar or whatever (there's many more things that service animals can allegedly do). And the ADA does NOT allow any front desk person/hotel manager to ask for any written documentation to that effect.
So, if you know how to answer those questions, Rover is IN. Even if Rover is the least trained, goofiest dog imaginable, it must and will be deemed a service animal with lifesaving skills.