AirBnb probable rental rates

[Michael Davis]

So, I saw a video about renting rooms, apts, etc to rerent on AirBnb.  I understand how it works, but I am having a problem knowing how much to rent a property for.  I have to make sure that a property will rent for more than I pay for it to make a profit.  How can I determine the probable room rent before signing a lease?  I intend to focus on garage apartments or separate rooms in private properties.