Also, make sure that you are stable financially.

Agreed, there are quite a few stable areas within 10 minutes of Metro.

In my opinion, when an investor uses alphabet classifications, B class should be areas that are above median value, median income, primarily owner occupant and in financially stable areas.  38127 as an area is primarily below median value, income and primarily rental properties and definitely an area challenged for economic development.With that being said, houses in this area are not valued at $170,000 to begin with so expecting $170,000 in appreciation is not practical. 

@Alison CromwellIn order to obtain a flip loan with no consistent income history, the following steps need to be undertaken: create an impressive credit score, put aside more funds as a down payment, check out new methods of getting funding besides what is available from banks or other financial institutions, involve yourself in investments with toughened entrepreneurs, show how financially sound you are by doing things such as getting enough money into savings over time through frugal living habits or accumulating valuable assets that can be readily converted into cash when required among others like developing several stable sources of income or steadily growing one.

Regulatory costs, property taxes, and costs for services will continue to rise, but the owner's rental revenue will remain stable, leaving a shrinking pool of funds available for maintenance and improvement. * Property taxes and other fees and regulations placed on rental property owners are already very high, and are rising faster than rent increases in many cases.

Additionally, Milwaukee boasts a diverse and resilient economy with strengths in manufacturing, healthcare, and technology, contributing to a stable job market.

Common culture today seems to have the fantasy that zero money down, owner will carry, borrowed everything will produce a stable income producing asset for the buyer.

It may be worth considering as an alternative a slightly smaller city or suburb where property prices may be more affordable and rental demand remains stable.

I'm of course bias, but we get a lot of Nor Cal investors here because we're driving distance but have low property taxes (that do NOT reassess on the sale), stable job growth, employment growth, land constraints that drive appreciation, and much more landlord friendly laws. 

With second home loans, the mortgage must be for one unit (I do a lot of 2-4 unit STRs), the property must not be rented for more than 180 days out of the year (limits revenue), must function reasonably as a second home (usually limits out of state investing), rental income will not qualify as stable monthly income (projected AirDNA does not play into your DTI).