Send it. Get it signed. Keep it on the record.

Open another app. Find the template. Retype the name, the address, the price. Every step is a delay at the worst possible moment.

When title asks for the executed contract, it's on the deal.

Purchase agreements to sellers.
Assignments to buyers.
Agreements to vendors.
A signed purchase agreement hands off to Transaction Management. On the buyer side it's the last step before closing in Dispo.

No. They sign from an emailed link.
On the record it was sent from, with its certificate.
Yes, as templates. Have your attorney review your documents.