I was able to convert from the back end, just as an FYI in case someone else is having this problem. I set up a new SCorp client and then copied and renamed the partnership file with a SCorp extension into the SCorp detail file. I remember doing this several years back with another client. It appears right now that I have copied/converted the depreciation schedules as well as some of the other basic data -- not all, but enough to save me some tedious reentry. It's not perfect, but possible and what I was hoping the phone support group could work through. Unfortunately they gave me the same answer-- no conversion-- so thankful I didn't give up and a suggestion for future programs to be able to do from any entity/individual to any other.
