@Andy KI have never heard of a device like that.

One whole house energy monitor can identify, record and report in real time the energy consumption of pretty much any electrical device on the property $300 +installation (https://sense.com/ ) ( https://www.schneider-electric.us/en/home/smart-home/wiser/wiser-app/ ).

Landlord set up and control of the property Wi-Fi can provide many advantages, from becoming a small but steady source of extra revenue, to enhancing security (remote control and recording of gates, entries, exterior building & common area cameras); to saving time (remote entry control & rekeying of door codes); to saving money on maintenance (through instant water leak notification & advance indications of appliance malfunction); to saving both tenant and Landlord money on energy usage through remote timing and/or turn on/off all or some lights, appliances and devices;  to ensuring compliance with lease agreements (real time notice of smoking on property, excess people on property), and so much more.Did you know that for $300 (plus installation), a landlord can install a device that will record and report in real time the energy consumption of pretty much any electrical device on the property (https://sense.com/ ) ( https://www.schneider-electric.us/en/home/smart-home/wiser/wiser-app/ ).

If so, do that every month, and save the file to your backup device.

@Elizabeth DiskinYou should be able to open an account at any bank of your choice for the LLC, but I would recommend Solera, they offer great system allowing you to do all your banking needs from the convenience of your home office or your mobile device.

Will look into those devices!

@Winnie Rim Yes, the call will come in through the app onto any device where it is installed.

I am looking for a device that can monitor a vacant home. 

I use Microsoft exchange so all my email, contacts, calendar etc are accessible in the cloud and on any device. 

Those devices and services are not produced by some 20-somethings in a college room reading blogs and podcasts about retiring in their mid-20s.