To transfer ownership here are instructions:

  1. Go to Drive or a Docs, Sheets, or Slides home screen.
  2. Open the sharing box:
    • In Drive: Select the file or folder and click the share icon at the top .
    • In a Docs, Sheets, or Slides home screen: Open the file and click Share in the top-right corner of the file
  3. If the new owner already has edit access, skip to Step 4. Otherwise, follow these steps:
    1. Type the email address of the new owner in the "Invite people" field
    2. Click Share & save.
  4. Click Advanced in the bottom-right corner of the sharing box.
  5. Click the drop-down menu next to the name of the person you want to own the file or folder.
  6. Select Can organize, add & edit.
  7. Click OK.
  8. With the same file(s) selected click  and highlight the user you would like to be the new owner.
  9. Click and select Is owner.
  10. Click Done.