Make it a 'time-share' enterprise and the guests become owners... and there will be far fewer concerns about anti-prostitution laws... and any activities would be private ones instead of public ones. The managers and help then become employees of the shareholders instead of 'purveyors' of kink.

Make it easy to buy and sell shares so that no one is really committed... and so that "maintenance costs" are absorbed by the "current owners" of the shares... i.e., the equivelent of a hotel stay.

That being said...

You'll need a chain of such establishments because... well kinksters and chains just go hand and hand....