I received a corrected 1099 after importing the first one. Do I delete the original and reimport the corrected one?

Yes, please delete the incorrect 1099 and re-import or manually enter the corrected one. Please see these instructions on how to delete form 1099:

1.      Login to your TurboTax Account 

2.      Click "Take Me To My Return"

3.      Click on the Search box on the top and type “1099” and select which type of 1099 you have (R, INT, MISC).   

4.      Click on “Jump to 1099”

5.      Click “Delete” next to the 1099 form you wish to delete.