I have cameras to keep this from happening or stop it if it does start to happen.

General cost should be about $200-$300 and the apparatus has a camera on it to go through.

We have a perimeter fence, barbed wire, 17 cameras, electronic gait access.  

Looking for something I can use other than the basic home internet to manage the locks and cameras at my property remotely.

I have outdoor surveillance cameras in the front yard and back yard.

If you have 2 or more properties, do you have cameras set up to see who comes and goes for each property?

There is a ton more involved than BRRRRing a SFH - you have buying/developing, managing, operations, various softwares (RM, CRM), security (cameras, gates, lighting, signs, locks), lockouts...the list goes on.

Perhaps a hidden surveillance system to catch the culprit will be money better spent. 

We have security cameras set up inside and outside, that are on the disclosures so buyers are aware of them, and that they are being recorded. 

Guest checks in, i double check camera to make sure no issues getting in (sometimes people have issues using Schlage lock.