Jeri,

   I think your Q & A supports my very point.

   The second you advertise a service and an admission price open to the public at large you are a public venue even tho' you haven't a performance license.

   The secret is not to advertise but limit to a closed population such as a private club. The residential status changes when it becomes a room for public hire.

This is one of those situations you can't win no matter what you do.
The population we have with disabilities needs reasonable accommodations and a fair shake. And it sucks when one(underline ONE) of the persons who is in need of your best intentions is doing their damnest to subvert your every move.

Don