There is no magic, mystery or external powers controlling that success.

Most people that I know who do R.U.B.S. and external company do the calculation and billing.

While it is true an external inspection will be compromised or impossible, you can usually have a good romp through the inside (attic included).  

The landlord is responsible for the common parts and external and structural repairs but there is a service charge to cover all outgoings.

@Joshua Weidman love just inlisting someone outside of the team as an external vetter.

Instead of a deadbolt, you could use a dead-latch on the external door which would get you your automatic close.  

This coming from a pessimist when it comes to external environments outside my control.

Of course there is a surcharge if they have to utilize external contractors.

Any deviation from that is external influence, money becomes less valuable(giving loans to anyone aka, last bubble), a large employer moves into the area and increases housing demand, large number of homes get destroyed in a natural disaster, etc.

The rock vs. hard place is that you can get external contractors and receipts but odds are those repairs will cost more than if they have their handyman do it.