Many of these areas also benefit from both rising home values and increasing rents.Ultimately, successful investing comes down to selecting a growing market, a strong neighborhood, and building a reliable team to support you.

That probably doesn't work well for rents, and the neighborhood will look beat up in 10 years, when almost every house got sold to investors.  

Recently a duplex came on the market that I am really interested in, it is located in an A neighborhood.

Very stable neighborhood.

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

My piece of advice would be to research emerging neighborhoods and focus on areas with strong job growth and infrastructure development. 

Investment Info:Townhouse fix & flip investment. 26 Pilling Street is a multi-family townhouse located in the Bushwick neighborhood of Brooklyn, New York.

However, the budget and surrounding neighborhood fit my box.

The key is understanding the nuances of the program and making sure your property aligns with their inspection standards.In Detroit specifically, Section 8 tends to work best in C and C+ neighborhoods.

Only the house 5 down with the same sq ft is literally worth 100K more because the neighborhood actually changes in those 5 houses.