The rental real estate should already have been added as an Asset for the Schedule E. When you reported that the Asset was sold there would have been a screen to report the Sale Price and the date of sale.
If you are referring to the Form 4797 Sale of Business Property, that form is finalized and available. Or Form 4562, Depreciation and Amortization (Schedule E) that form is also finalized and available.
See this TurboTax support FAQ for IRS Forms availability - <a rel="nofollow" target="_blank" href="
https://ttlc.intuit.com/questions/1908854-irs-forms-availability-table-for-turbotax-individual-perso...>
