Don't disturb the occupants with multiple accesses for mundane reasons, come on.That being said, on a vacant property, I can't think of a good reason to deny an additional access to the property to take measurements.

I would have to agree with @Nathan G.The fact that the tenant didn't seem disturbed or frantic that her house was just shot up tells me she might know the reason the house was shot at.

Any disturbing comments, excessive tattoos, too young, etc, meant they weren't in the mix.

We have had to evict one tenant already, since they had guests loitering and making noise at late hours, which was disturbing AirBnB guests, resulting in a few negative reviews.

Warning, this topic could be disturbing to some people.I have recently put my condo up for sale, after a bad tenant left.

When viewing the property please do not disturb the occupant."

In most cases, as long as you don't disturb it -- sand, scrape, cut, tear, remove, etc. -- then you don't need to worry about it. 

The Landlord can do it IF it is written into the lease agreement properly and they can remove the items without disturbing the peace.

@Alicia Marks funniest and also most disturbing - didn't know at the time but a tree root was blocking our sewer line at our duplex.

Its not my preference to "do something on one property" which disturbs all three.