You can achieve this using Hiver Shared Mailboxes. It lets you manage your shared mailboxes right from your Gmail (Google Apps)
You can setup the info@ account as the shared mailbox in Hiver and your team mates will be able to access the emails sent to info@ from their Gmail. You can assign the emails to your team as well as close them.
The shared mailbox users can reply from their personal email id or the shared mailbox id and Hiver would keep showing your the replies sent by anyone in your team.
Disclaimer: I am associated with Hiver but I think this is a relevant answer here.