Would love to find a property management company that I can partner with on multiple properties and for the right company, would adjust/concentrate my location.

The cap rates are higher in the areas with higher concentrations of section 8 rental units.

But more importantly, you'll defer all the tax in the 1031 while concentrating equity so if you find another property later it will be a simple matter to access that equity with a refi of only one property. 

I have owned, bought, sold and rented anything from SFR to MF’s in 3 different states.I sold my last rental property in 2008 and figure it’s about time to get back in.I will be concentrating on buy and hold strategy, for long term cash flow and due to my location I will be looking to out of state properties.Looking forward to learning from others and sharing my experience here on Bigger Pockets!

That said, depending on how concentrated you are in one asset/strategy, diversification can be a wise move.

Note these three educators (who I hold in extremely high regard) concentrate on blending the note business with buying/selling single-family houses and other real estate.Kent

This is exactly it.Yoni, I'm not sure why so many people are concentrating on your agent.

Another example is management, the good companies only focus on certain neighborhoods and the best ones will not even go into an area where their resources are not concentrated. 

And. whether you like him or not, Mexican's president is not wildly accused of being corrupt and is probably less corrupt than many other heads of state.Aside from that, let's concentrate in the positives within your message, which is that you should do your due diligence and prepare (isn't that always true?).

A lot of people who commit crimes are concentrated in that area.1 + 1 = 2(just my 2 cents)