So 2 things, 1-good cameras/alarm/lighting, 2-either you become very involved or get a manager and house sitter.

Put on some camera & record him in action.

.- I put a home depot sign in the front gate that the house is being recorded with camera.

You mentioned that the owner of the property next door has given you permission to set foot on her property to accomplish the work you need to do.I'd get that in writing and get it notarized, then deliver a copy to the tenant by a sheriff or constable (however it's done in your area) so she cannot claim that she didn't receive it.With all that as backup, do the work you need and set up video surveillance for your own protection.Good luck!

@Melanie Stephens Tried to sell a unit during Covid but due to lack of inventory in the market the tenant refused that we take pictures of her belongings and post it publicly, refused any in person showings unless she could supervise with surveillance and then accused our realtor of sexual harassment.

I am certainly trying to delegate, but when I see a 50% mark up on pest control where the vendor didn't even get into every unit, a plumber charging for 2 hours when my cameras only show him there for 20 minutes, and not noticing a double in water usage from one month to the next, I have to be on top of the PM company.  

Right, you could put the flyer up in front of the camera and do an elevator speech.

As for the news cameras...... that seems to be pretty common place now.  

I appreciate the info in all, hey if you need a surveillance system or fire alarm, or building automation, Intercom System....that's my field. thanks again.

We have also added cameras to our new Dallas office in our expansion of that location.