Yes, I've got the Simplisafe system with water heater (or anywhere) leak detection--cool thing is you can place the sensor anywhere, Ring doorbell cameras, Ring exterior cameras, keypad entry WITH the physical key option for WHEN that battery dies, WiFi thermostat (Nevada Power offered it for free).

Hey BP,Can anyone recommend a private detective to help find contact information for a vacant property owner(s).    

I have seen this type of scenario play out many times over the years in my work as a Police Detective in the Economic Crimes Unit.

But since it is a slow disease and can take years to be noticed, the statue of limitations clock starts when the damage was detected, not at time of exposure.

It takes some detective work.

I HIGHLY recommend one with a thermal imaging scan to detect moisture collection behind walls and roofs.  

Hmm...I am detecting a theme here.

The sooner you detect these problems, the less damage that can be done. 

Get motion-detection light-up floodlights, it's getting dark earlier now.

Constantly, trying to be a detective and trying to collect money owed will make you go crazy and make you hate owning rental properties.