Look into the mix of industries surrounding your subject properties.

The past few years in the industry have also given me the opportunity to work on several large mixed-use development and apartment projects.

Turns out, the hardware store mixed three gallons property, and two badly.  

We have all kinds of meetings and have a good time eating and drinking and spending time together.

Mixed use is pretty sophisticated stuff from my perspective.

I know of about 10 projects(oracle campus and multiple Class A multifamily & mixed use developments) in that area which are in the permitting stage. 

I like about a 50/50 mix of free & clear & leverage, but my own personal situation is much less leveraged than that, about a 3:1 ratio of free & clear to leverage.

My "niche" for my REI would preferably be buy and holds with a few flips mixed in to help me build captial and have money to reinvest.

@Graham Armstrong, one more thing, when you wrote "it is B area definitely not A or C", and you were asked to clarify, I believe you mixed your metaphors up a bit.

My preference is to never  mix personal and rental use on a house, except under mitigating circumstances (i.e. if you were moving out of town for a period of time, but planned on moving back to the same house).