Solution, though steps may vary based on Tax year and therefore version of TurboTax:
When you get to review your real property profile/income/expenses/depreciation, select to Update the "Sale of Property/Depreciation". You should see the list of "Your Property Assets", and there should be an item corresponding to your property and its depreciation with a name of the asset that you should've entered in the past, for example "Residential". If you don't see it then you might've not maintained this property properly in the previous tax years and may need external help. If you do see it, then click "Edit", then "Continue" and answer "Yes" to the question "Did You Stop Using This Asset 2016?". Then you will be asked several questions, including the date and price of the property you've sold.
