It seems like the cities I listed had the best metrics and could withstand the upcoming housing crunch more than others.

This time I'm looking with my partner to buy multi unit but we're going to really crunch numbers and do diligent work before buying.

Once they do that, then yes, I'd suggest crunching the numbers and making sure the deal makes sense. 

Actually it can't be overstated that you should be meeting with them a lot.. you want to work WITH them, and not AGAINST them.Lots of number crunching.. and there's other ways to make money from it too - could consider wholesaling.. yes.. wholesaling a commercial site.

We have been doing this for over 10 years and we have a system to look at properties, crunch numbers and identify what is a deal and what is not a deal so that our clients can make as informed of a decision as possible.

The last mid-sized multi that I crunched the numbers on they were willing to share the rent roll and some of the expenses (you can get the taxes and some other numbers on your own).  

I was sure when I first started that popular cities were the way to go...but then I crunched the numbers...not while the market is good again.

How about this (you'll have to do much more in depth number crunching).

or is this too much for just crunching numbers on a property that I MAY be interested in?

This poses a serious problem as the incoming tenants have typically given a 30-60 day notice to their previous landlord so they are almost always under a time crunch and may have already made arrangements with moving companies and utility companies.