I need to rsync from a root protected directory on one server to a root protected directory on another...

Thanks to: https://crashingdaily.wordpress.com/2007/06/29/rsync-and-sudo-over-ssh/

sudo rsync -av -e "ssh" --rsync-path="sudo rsync" username@srv01.prod.example.com:/tftpboot/ /tftpboot/

So here is the thing...

I SSH(ed) to the remoteA and forwarded my ssh keys (ForwardAgent yes) and ran this command:

Breakdown:

sudo rsync -av -e "ssh" 

^ On the host I'm running this on run it under sudo

--rsync-path="sudo rsync" username@srv01.prod.example.com:/tftpboot/ /tftpboot/

^ On the remote server run rsync server as sudo