Will Homebot notify me if a client unsubscribes?

No.

No, Homebot will not notify you if one of your clients unsubscribes from the digests.

You can check out and manage your "Unsubscribes" from your "Client Management" tab.

Go to "Your Clients", then "Email Issues", then "Let's go!" from there you can sort out any clients with email issues or who have unsubscribed from the digests.