Is Purchasing canal Winchester Ohio homes with cash a good Idea

[Ethan Antwain Reynolds]

I am a cash buy and hold investor in Ohio my wife and I buy homes in 5+ school districts in central Ohio cash. we pay 1-5k bird dog fees depending on the discount of the deal for (150k homes 1% bird dog fee). our parameters are. 

City analyzer explanation I use the years 2000-2017

1. population growth 20% increase since the year 2000

2. income growth 30% increase since the year 2000

3. median home value 40% increase since the year 2000

4.crime under 500 moving in the direction of less crime

5. median household income 40-70k

6. no investments in areas with poverty levels 15-20%

7 neighborhood unemployment level no more than 2% above the main metropolitan city (Columbus).

we can't seem to find a good real estate agent in central Ohio that understands the investor side of real estate.