Pam90041
Level 1

I had this issue, two Preparer Notes referencing issues from prior years.  The actual Preparer Note was unchangeable and wouldn't delete if I hit Ctrl-W, they just stayed.  I finally found their source, they were actually "Additional Information" sheets.  I could delete the Additional Information sheet and the two uneditable Preparer Notes finally went away.

I guess if the return is being efiled, the Additional Information sheets show as Preparer Notes until the additional information sheet is deleted.