I'll also add that if it's just a few apartments zillow surprisingly works very well for resident screening (background checks, credit checks, employment verification) at no charge to you. 

If ownership is identical, most will allow this depending on how long you have had the loan. 2.

It was to be yet another lesson in market nuance when I learned savvy buyers paid a premium (10k-20k) for identical houses on the Columbia County side of the street of Clairmont–because of the more desirable public schools.

From a practical stand point, and something you should do for everyone, ask for employment verification, references, past landlords, bank records, etc.

We spend 4 weeks/yr at an identical unit and pay $800/night split among 8 people. 

I own four lots in Jacksonville and will be constructing 4 identical houses.

I think you are on the right track with the income verification, and speaking to previous landlords.

The only kicker is that there is an identical quad-plex right next to this the one that has to be sold simultaneously and I can only afford one.

As I see it, this development is set to become a cornerstone of Detroit's new identity.2.

They did, but not with additional verification for their business; just the on boarding documents.