Vegas does not have a professional dungeon that pros rent because the Vegas cops actually hate BDSM and go after anything like that which gets set up. For that reason, local Dommes have their own place and touring Dommes use hotel rooms (for the most part).

I know of a couple of Vegas Dommes who should fit what you are looking for:

Goddess Natashka - https://www.pro-dommes.com/

Maya Sinstress - https://www.sinstress.net/

There are others who are also excellent such as Goddess Christine and Goddess Lilith (not to be confused with Ms Lilith Kat who travels to & lives part time in Vegas but doesn't have a space there). But, I don't know if Lilith has a space in Vegas and Christine is more on the sensual side. There is also an asian rope specialist who lives in Vegas but her name escapes me right now (although she does advertise on eros quite often).

Hope that helps some...