The cameras are all on the outside of the property, so privacy wouldn't be a problem.

You can install a camera.  

I also have the Nest smoke and carbon monoxide detectors (State requires carbon monoxide detectors) CO2 detectors give you peace of mind anyway so you may want to consider that at the top of your list.I have also set up my own portable security cameras when I don't have tenants.

This afternoon I had a meeting with the owner of the outsourced security firm for our neighborhood (looking to upgrade some surveillance equipment).

We even bought a small compact camera with a zoom to take pictures for them.

I have a video camera.

They used infrared cameras to detect this information.

There are weapons lying around, marijuana everywhere, all the windows are covered, he has cameras outside the house, ect.

I think BP needs to send out camera crews to investors projects and start producing more video content!

while I use a software checklist tied to my PM software now, I used to walk the property with a checklist by room with categories to check (paint, floor, fixtures, blinds, etc.) and camera..