@Jason Brown install multiple security cameras, all focused on the corner.

Lights, cameras, cops.

I usually give them a heads up if they’re standing in the camera field.

It's this whole idea of infrared cameras and 'testing' for something that occurs in the air naturally and for which no certification of qualification is required, and no 'unsafe' level has been determined.  

You can have the sewer reviewed with a camera that will give you insight on one of the more costly plumbing repairs.

My camera system watches the house so I don't worry about someone coming back to get in.

We are considering using a simplisafe system with door lock and exterior cameras for our STR that we are building.

If I am doing a rental where half a months rent is split between 2 agents, chopped up by their brokers fees, taxes and time, I will give them option of the seller/owner paying or having me snap a few with my camera. 99% I get told to just use mine.

With technology were it is today your smart phone, tablet or digital camera should allow average Joe's as well as professionals to take many quality photo's.

Learn how to inspect a MHP, run some cameras down the sewer lines, check for water leaks, other infrastructure, etc.