Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Record when each approved renewal goes out for signature.
Your renewal agreement reaches the right signers before its deadline, and you get an email showing who was invited and when.
Confirm the signer route before sending approved contracts.
Your agreement reaches the named signers with their own fields, and you get a link showing who received it and in what order.