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)

I lived in the area for 3-4 years and decided to invest as they have a high concentration of intelligent people in the area.  

It has a fairly robust economy, with the exception of high tech and medical jobs, with a large shift in the last decade to being a logistics hub for So Cal due to it's central location (the major HWY arteries to the rest of the county run right through the IE) and has some of the largest concentrations of large warehouses rivaled only by New Jersey, the median income is a little below the Cal average by about $10K and about $5K higher than the national average, but, it has been growing.

And, since most people hold a property for many years, so you will need a number of reliable tenants over the years.The best way to always have a reliable tenant, is to target a tenant segment with a high concentration of reliable tenants.

The kicker in WPB is that you have Palm Beach Island - a concentration of wealth from all over the world that is unlike anywhere else.