B class to me is blue collar stable - can you confidently say this is the tenant mix?

I probably can't tell you much more than what you could find out on your own in that it's not a Blue Springs, Lee's Summit type area nor is it a rough "D" neighborhood either. 

Insurance is well represented with Blue Cross having their national headquarters here and Unum, the world's largest disability insurer.  

Down the 95 corridor you have Marcus Hook in PA and Claymont in DE; these are smaller blue-collar towns and I don't know if the options are as good.Frankly I would focus on more populated areas closer to transportation and city hubs.

The absolute best contractors usually fly under the radar and can only be found by word of mouth so get networking with the blue collar demographics!

See my response in this post @Derek Lester where I confront those that feel the need or want to cut Architect cost: https://www.biggerpockets.com/forums/44/topics/628734-poll-how-much-are-you-paying-for-new-plan-drawings-blue-prints

I walk to blue bottle from my house, so I'm pretty sure gentrification is complete with 800 sf prices to go with it.

Not even figuring in management costs or utilities Have you read the book Blue Ocean?

If you are using Ohare a lot then check out neighborhoods along the blue line that make it easy to access Ohare.

So the thing is that when you do finally decide to start investing in real estate, whether it is remotely right now or later when you're back in the red, white and blue, you will first need to build a team.