It's an alarm that has a siren for 5 minutes, and notifies the sheriff office, and my cell phone. 

Also when you post the notice, make sure you take a picture with your cell phone.

Hopefully it’s something innocuous like that - it’s sort of silly for him to pay for a dedicated internet connection or cell connection just for a camera or thermostat.

My thought is that I have been very friendly with my tenants in the past, and they all had my personal cell number. 

The police came after they were there with me for over 5 months and broke down my door ( since I lived 30 minutes away and they just couldn't wait, although the tenants were not home) they stopped paying rent after 3 months, and changed cell phones regularly.  

I value my housing situation, car and cell phone bill much more than beer and partying.

which tool do you use to pull the cell numbers?

Every single time I showed that house, there was a fat, shirtless guy sitting behind the window staring out at the backyard. 

And you can set up your CRM so that each property has its own cell and own documents? 

My fingers have been getting fat too.