Calling off or ending an agreement
Before signing, call it off; after signing, give notice.
Before everyone signs
Any party can press Call off with a reason, and everyone is told. The person who started it can also remove a party who has not joined, add parties, resend invitations, or delete a draft that was never sent.
After it is signed
Any party can Give notice to end the agreement, choosing the end date (30 days ahead is suggested) and a reason. The notice is recorded on the agreement and the PDF. The person who gave it can withdraw it before the end date.