Learn to become a good investor and invest where you can apply your skills the most effectively, efficiently, and profitably, which is normally in your own backyard.

There's some great guides around and plenty of places to learn about how to do it effectively. 

Denver for example, has 3% of total office inventory, compared to 1.5% historically, with 5 million square feet of construction underway.According to CoStar, "The impending wave of new supply will have an impending ripple effect on demand fundamentals such as net absorption, occupancy and rental rates in several large markets in coming quarters."

I'm not paranoid, but I would like to be prepared in the event something does go wrong with or property, it can't effect any of the other properties.

There's a new rental development going up not too far away in Point Richmond that could have a positive effect on your rents, as those new townhomes will be market rate (though market rate is technically still tbd, of course). 

The change cannot take effect until March 1."

They're cheap and very effective.  

His company's free online budget tool will be very helpful to you if you're not using something effectively right now.  

The strategy I used before is becoming less and less effective in this market.

But it really depends on your personal situation and how taking $1300 less/mo will effect you.