A landlord up in the Chicago area was recently taken to task for calling themselves a Property Manager.

For example, low income to rent ratio, high rental growth, and high renter ratio, etc.

(Not an easy task to build robots for NASA being a foreigner!)

The growth of most of Huntsville has not reached the north side. 

The exact method depends on the county)- insurance (ask your agent for an estimate)- replacement reserves ($250-300/unit/year)Project income and expenses to the future (e.g. 5 years from now). 3% rent growth and 2% expense growth are typical but your millage may vary.

Population growth and its main driversEmployment growth and the major employers Unemployment rateMedian home valueMedian rentRent/Value ratioEst.

Texas in general seems to have a great market and lots of potential for future growth. 

Sell.You're nowhere near the 1% rule and appreciation will likely continue to outstrip rent growth, further depressing your ROI.

I am anticipating the growth of the surrounding areas right outside of both neighborhoods values are still tremendously low(Chandler Park Dr, etc.)

I've been watching Youtube videos, and it seems like a task I can could handle.