If you prevent somebody from getting the unit they wanted with your phone call by making false statements, they might just come after you if you said the wrong things.

I blame it on them being upset paying late fees for last month's rent.Advice on how to communicate with tenant in situation like this to prevent them becoming aggressive and what do you think warrants reimbursement?

But overkill and just unnecessary with a rental??

Since that's the case, the UPS box is probably unnecessary; if they want to find you, they will.

You can also try adding Biggerpockets.com to your contacts list, it helps in preventing the email from going to the spam folder. 

The way I look at it, an ounce of prevention is worth a pound of cure holds true in the majority of cases especially when it comes to maintaining a commercial property.

It seems to be a unnecessary expense with no upside.

The are strict license requirements in my industry too (home inspections) but that doesn’t prevent a non-inspector from owning and controlling a home inspection business. 

This will prevent headaches down the road.  

Zolotorofe,I certainly appreciate your insight and also the taking the time to respond, that was very kind.I understand the nature of the digital world we live in, and how it is unnecessary to be face to face in person for every meeting.