Check with the BTB for regulations on tourist rentals.
The business will need a hotel license, issued by BTB. Not expensive.
You will have to meet certain minimum standards and there is a booklet that outlines these, also available from BTB.
As noted by Nicolle, if you work you need a work permit or residency.
Employees must be legally allowed to work, so check their documents before hiring. Also strongly recommend getting a police report on employes who go into guests rooms.
You will need to register your business for Taxes as well. business tax and hotel tax.
None of this is all that hard to do. Enjoy!!