Hi Hope,
You don't say what kind of 'rules' you are looking for.
Your local business licensing authority, your local health department, Tourism Board, Convention Bureau, Chamber of Commerce, and a local realtor would all be places to start.
Visit my website (Free Stuff). I know I have at least one business report in there for bed and breakfast, possibly others.
My book outlines the entire start-up process.
Good Luck!
Source: http://www.abusinessmentor.com