The letter date is linked to sign-off from the Caseware Document Manager. You can choose from Today’s date, Preparer date, Manager date, Reviewer date and Manual date entry. The date can be 'locked' with the button below so the date isn't constantly changing to match Today's date.
The salutations are populated from the Contact 1 and Contact 2 tabs in the Engagement Properties dialog. A list of different formats are available by right-clicking on the name.