Ten Questions to Ask Before Buying a Franchise

What type of franchise is it?
Does the business lend itself to the franchise model?
What does the offering circular say?
How many franchises does the organization have?
How much is the franchise fee?
How much will you have to pay in royalties?
How much money will your business really make?
Can you work with these people?
How will the franchiser help you?
Is the franchise company legitimate?

From this allbusiness.com article.