As many people alluded to, get a bank app that allows you to deposit checks in your underwear at 3am using your camera on your phone.  

Plus, it's associated with a camera, so that is an extra security issue as well.

The house has a nest thermostat already installed, I plan to either use a Schlage Encode or Kwikest Halo lock (the existing locks are Kiwkset that appear to be pre-smart key, so depending on how easy it will be to rekey/recore and integrate with the smart lock will decide), and I plan to add cameras covering the front and rear of the house (unsure of type), and potentially a noise monitor like Minut. 

Looking for experiences in installing camera systems in common areas in apt buildings.

On my VRBO I have Honeywell wifi thermostats, Digital Watchdog commercial grade camera system and just added a Rheem wifi water heater.I see no value in adding any of these to a rental as it doesn't increase the rent I get on the unit and I don't pay the utilities.

One of my guys thinks we should add Nest thermostats, sensors, doorbells and outdoor and hallway cameras to the building and units. 

Things like smart locks, thermostats, cameras (outdoor only obviously, no audio).

I fill out the paperwork online (takes about five minutes), my husband takes pictures with his DSLR camera and we upload them.

They also can use a infrared camera or a borescope to do an inspection at what may be a lower cost, but they usually only use these for newer stucco homes since that is where the problems normally area. 

Curious if you have any recommendations for what you suggest/use yourselves in terms of security cameras and keyless pad entry types/brands on-site at your rental properties?