From my experience, here are a few property management companies that my clients have worked with:ERA Solutions: They have a strong presence in C-class neighborhoods.Realize Property Management: Better suited for A and B-class neighborhoods, though they do manage some C-class properties.Ohio Elite Management: Primarily focuses on B and C-class neighborhoods.

I would go for appreciation in Class A/B area and not try to buy the cheapest properties Class C.

That's why Class A properties, have a lower cash flow/yield than Class D properties.

That strength i carry that lets me stand alone is beneficial but also as I left that crowd i was never able for unknown reasons to reconnect to a better class of people or even network.

@Aaron Raffaelli we call all the cities that touch Detroit, the Ring Cities - except the Grosse Pts.These cities are mostly Class B and are solid rentals.Detroit overall has gentrified to Class C, but at least a third of the city is Class D still.Check out the interactive map on our website and watch for whats coming...

@Celine Li Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

If they really are, you should ask for copies of city permits and proof passed inspection.Fitzgerald-Marygrove Neighborhood average property value is only $87,549, making it a Class C-Minus Neighborhood (in our opinion).

That could be market knowledge, ability to rehab a property - something that can give you an edge over other experienced RE professionals in the market and asset class you are working in. 

And because we use classes, we need the 2nd to most expensive version.

@David Dachtera, I did the same exercise in a COBOL class ;)