He can move them because of his vast influence and network.

Cities are engaged in the social aspects of property ownership, low moderate income housing, middle income neighborhoods, several reasons why but it often for keeping the tax basis more favorable and, political bodies have image problems favoring landlords or investors who are in business, there is a line where government is to stay out of business and influence competition. 

Obama being a man of color had absolutely no influence on me as far as who I wanted to see become the leader of this great nation.

Quick background that might influence your responses, I bought the property in Oct. 2013 and its already rented with positive cash flow ~ abt $850 p/month.

I go to the site/waterfront influence category but I don't see anything

When inflation kicks in once again the penalty paid for using ROI instead of NPV will increase.I am not sure how do you mean the influence of the inflation in the NPV calculation.I am using this formula:... where the i is a discount rate, t is the year and CFt Cash flow in that year.In my opinion the influence of inflation isn't included in the NPV formula, but let me know.

While the quality of employees varies and is influenced by motivation, you'll get more bang for your buck in RE, IMO, on commissions.

I would say a lot of it would depend on your income, whether you have any mortgage on the house, how much higher your rate of return is versus the interest on your debt.A lot of things that could influence opinion one way or another , that we don't know

Are there other properties for sale on the block that you could purchase to help influence the area in a positive direction?

Also, tell the realtor you DO NOT want bank purchases in your comps as that has no influence on market value.