If you are listing your property on Airbnb and do not
own it (i.e., you are a renter) you should enter that you own it, and that you
are an active participant. In terms of your expenses, you can list your
rent under "Any Other Expenses?" but only for the months that your unit was available for rent (pro-rate
the rent if you only rent part of your property and live in the rest). (See the attached screenshot below. Click to enlarge.)
When TurboTax asks about deprecation and mortgage
expense. leave those blank. You will not depreciate the property.