Don,
I do get what you're saying, and that may or may not be there ( I have no idea). Does it not exist because it is not needed? I would say that unless you find a statute that gives a developer or condominium association the right to take away the ability to rent why would one think they could? (Not counting contractual limiting and maybe a vote of majority of owners??)
Clearly developers and associations are given enumerated powers. For example, no one (or few?) would argue that the developer may limit me bringing into my
DVC room only food purchased at a Disney venue, even though there is no statute that food bought anywhere that may be brought into a room.
I am interested in what clause gives them the ability to limit renting beyond the commercial use limitation that was in the POS. I think it's incumbent upon them to show they have that power (and maybe they do, I don't know) to limit renting beyond that, not for us to prove that we have the right to rent.
Clearly the ability to rent is not absolutely protected (like a right) as the section I included earlier states a contract can restrict it.