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.
Check the approved PDF before inviting the agreement's signers.
Your agreement goes to the right signers in the order you choose, and the case gives its owner a link to the request.
Route approved agreements to every named signer.
Your agreement reaches the named signers with their own fields, and you get a link showing who received it and in what order.