Still not there yet, but wanted to provide another update.  To get the files to ProFX format, CCH required a new license agreement, which has taken a week.  We got ProFX2020 installed today and believe that we have completed the ProSystem FX backup correctly.  Lacerte2021 is not accepting or recognizing the files, so we are back to the HelpDesk phone queue to get help from Lacerte.

Two weeks and counting . . . will continue to provide updates when and if progress is made.