If the property ewas rented in 2018, enter all your information in the Rental section. There are two screens on which you will need to indicate the sale. See the screenshots below.
If it was not rented in 2018, you will need to enter it under sale of main home. There, you can recapture your depreciation.
Say "yes" that you sold your main home and TurboTax will guide you on entering this information