I voided my request with the bad email from the esignature dashboard. 

Then I changed the email in the tax file. Hit F9 & F10 just because that seems to be the thing to do with Proseries.

Then I chose "save as" and renamed the file. 

I went to the efile center. There were two files showing for the client. I went into the first file and unchecked the efile federal and state buttons. That left the newly re-named file in the efile center.

I was able to request signature and it had the updated correct email on it. 

Those are the exact steps I took and it worked. Hopefully this helps someone else!