Larger population and the state capitol is in OKC.Tornadoes haven't really been a thing the last 10 years.

There's so much population, job growth, and companies moving and developing here (Intel, FB, Google, Microsoft, Honda, LG, Anduril, etc).

Property prices are lower compared to larger cities, offering the potential for higher returns, while the demand for rentals remains steady thanks to a large student population and growing workforce.

The macroeconomics are on fire here - population growth, job growth, and companies moving and developing here.

The result is outward population migration and rising crime.

The short version is that you want a strong and diverse job market, low unemployment rates, a growing population, low vacancy rates and new development, affordability/cost of living, real estate laws and court system, good schools, and low crime.Check out the videos from Dave Meyers with BiggerPockets.

Their is strong population and job growth in a number of Central FL markets. 

I suspect maybe something like Hagerstown or Cumberland, which yeah are Class D like markets with declining populations, high drug problems, no strong job base which leads to non paying tenants.

One reason eastern KY really lags behind is that they don't have a lot of employment opportunities and lower populations.

Check out this chart: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyMake sure you understand the Class of properties you are looking at and the corresponding results to expect.