You also need enough storage on the NVR to hold minimum of two weeks CONTINUOUS recording of all/most of the cameras (motion activated only cameras tent to miss a lot of critical views).

Install a camera system to watch over the room.

It just keep going up and adding up and after a while I was like Oh my god what the hell- Where is a camera when you need one.The tv shows look so easy- Go over budget just add an extra xxx to the price and house sold.

With this being said, we purchased the home with outdoor security cameras installed. 

Turns out they smoked in my house (against the rules) snuck a dog into my house (against my rules because one of my kids has allergies), then they looked right at my ring camera and said "I know you are watching" and then threw their cigarette butt out on the ground.  

Then you can easily program door codes and install a security camera if you choose.

Next thing cops show up, confiscate all computers in the 4 plex, cameras, cell phones..Kiddie porn was issue and it took several months before the cops were satisfied the landlord had nothing to do with it.. but stress, lawyer fees and grief all could have been avoided if the password and internet access was not shared.

Thats Awesome.Do you pay someone to take them or you have a high resolution camera.

This is what I use for exactly that purpose:https://www.biggerpockets.com/files/user/kubaf/fil...When I first do a walk through on a property I use this while I walk the property with my camera phone in hand to record the whole place top to bottom narrating the whole thing.  

I was an NPI Engineer, then a Process Development Engineer, then Design Engineer, and now I'm a Manufacturing Engineer making thermal imaging cameras.