When you are in the interview that shows the asset you sold, one of the first questions will ask if you sold the property in 2017. Say yes there and enter your sale info.
On a later screen showing your asset summary, you edit the assets and enter additional sale information. You will come to a screen asking if any of the situations listed applied to you. One will be that you traded the property for new property. Say Yes there. Then go the interview for the 8824 like-kind exchange form and complete that form. Your boot will be entered there.
