Instead of physically to your property to help troubleshoot, you could have had a quick video conference (cellphones) where you could ask your assistant to operate the door entry, while you see it on your cell phone.

Cell: 9106121646. 

My house Is paid off and the rent covers all expenses you mentioned plus electric, our cell phones, internet and auto insurance.  

Typically a contractor provides their own tools, which in the case of a property manager means their own vehicle, cell phone and computer.

My gf & I have both had our current cell phone numbers for over five years each & have been at our current address for over two years...

sell your car, watch, cell phone and blood. 

See Denver Business Journal article below.

So you get both the service from having the local person (my cell where you can call me anytime), but the ease of transferring documents in several markets (so you don't have to keep re-sending) by being under the umbrella of the larger company.

Her tenant decided not to pay rent, knowing the landlord would be overseas with spotty cell coverage. 

No wasted brain cells to decide curtain style or colors.