I am Luke Zhou, being a host in Toronto, Canada for more than 5 years. In Canada, right now all guests are subject to the 5–15% GST, HST and/or QST, right?
As this is a global community, it might be hard to find a Host from a specific area. There are Local Host Clubs though - so it might be worth popping there for more area specific regulations and licences, cleaners and things like that. Please let me know how you get on.