Tenant left - never updated forwarding address

[Brian Dalton]

Hello everyone, so pretty much like the title of this thread says, we had a tenant vacate our property, and not notify the post office of creditors about their change of address. So now, we’re getting all sorts of mail, most recently from collection agencies. When we tried to contact said collection agency because we have the forwarding address, but they weren’t interested in our information. Short of sending these letter back to the P. O. marked “Return to sender”, what other options do we have?

Thanks.