Or . . . I'd take the lazy way out, file an extension and wait for the 2018 software to come out.  IMO forcing a 2018 return into the 2017 software ranks slightly better than filling out a paper return with a red crayon.  Unless there are lots of assets still being depreciated, then it's slightly worse.

Rick

PS: But great answer George, very detailed.  If I ever have to do a short-year final return in Lacerte before the forms are released, I'm calling you!