We considered cameras for about 2 minutes.

I sacked all of mine and now self manage.A reliable & honest contractor is the most valuable member of your team.Security cameras (multi family) are worth their weight in gold.

Don't put any fences, cameras, electric there (make the numbers work); unless it is very cheap for electric/camera/internet. 

Take a Picture with a digital Camera of the front of your new client’s home!

Would also be a great thing to have for a vacation property.The wifi security camera system I like is the Y-cam, mainly because it's the only one I know of that stores your files on the cloud for free.

Install a camera system to watch over the room.

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).

If it were me, when I went to see the properties I would have that original sheet, a note pad and a camera.

And others (which I typically always use) will crawl through the smallest attics and crawlspaces and some now even have cameras and drones for areas they can't access!)

I would be worrying and cruising by the house too much lol I have outside cameras so I just keep in touch that way and have really great handymen and cleaners on standby.Hope this helps!