Here are the steps to record sale of the rental :
Make sure you select Residential Rental Property under the Sale of Property / Depreciation. ( Step 4 from below instructions)
After going through the rental section to enter your rental income and expenses,
1. On the screen, Your Rental Summary, under Sale of Property / Depreciation, select Start
2. Follow the prompts
3. On screen, Depreciation for Your Rental Property , select Yes and follow prompts
4. On screen, Describe This Asset, select Rental Real Estate Property and Continue, follow prompts
5. On screen, Tell Us About This Rental Asset, enter information and select Continue
11. On screen, Tell Us About This Rental Asset, enter information.
12. Continue to follow prompts to enter your cost and sales price.
See attached screenshots