This is much much much faster and requires far less equity than if you compared that to say traditional single family rentals. 

NYC:- NYC will probably appreciate at a higher rate and shorter amount of time compared to Jacksonville homes.- I will be able to find tenants sooner in NYC compared to Jacksonville. 

My roof is not dark (it's metal, orange-like color) but it's not really visible given the higher elevation compared to the street. 

Compare that to what you are losing now which appears to be nothing except the inconvenience of a less than ideal payment pattern. 4.

You're also comparing the mountainous region of North Carolina with an oceanfront region of Florida rather than something a little more intellectually honest such as the saltwater marsh and lowland regions of North Carolina on the Atlantic ocean. 

Those aren't appraised via income approach, they're appraised using comparable sales approach.

Conventional Rates are slightly higher than FHA, however the payment difference may be significant compared to refinancing into another FHA loan. 

If you are interested, you can request to meet with them and/or submit an LOI detailing your offer on price, financing options, terms, and other items related to the purchase.If accepted, request Tax Returns for this business, and have an Accountant(reach out to me if you are looking for help with the Analytics of a business purchase) compare their financials to the Tax Return.

Just because comps are .5 miles apart on the map doesn't mean they are comparable.   

It is slightly underrated compared to some of the others you hear about constantly.