It's mostly Class A properties, a few Class B.You may find the below copy & paste info useful in addressing your question:----------------------------------------------------------------------------------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?

You are allowed to charge for ALL damages beyond ordinary wear-and-tear.

Falling out of compliance can lead to penalties, lawsuits, and even damage to your reputation as a landlord.

Once the disaster is over, someone from the lender will verify the structure wasnt damaged and then proceed with the funding. 

And the truth is, it’s hard to pinpoint because Detroit is such a block-by-block city with an incredibly large footprint.

That said, Detroit is very much a block-by-block market, so understanding the dynamics of specific areas is critical.For professional investors (and even newer ones), Detroit’s future is bright if you approach it with the right strategy, solid due diligence, and an understanding of the challenges.

As a would be individual landlord with just a one unit single family property I don’t know I can stomach the risk or withstand a financial assault resulting from an eviction process for a non-paying tenant (or tenants that do extensive damage).I am seriously considering bowing out and selling.

that sits right on the parade routes, a block from the college campus, and block from a bunch of restaurants and bars. 

We have zip codes that have lower and and higher end areas within the same zip so not a good marker to use.Going along with that a lot of the neighborhoods are very street by street or change pretty quickly by block, so you have to be aware of that.

In a city like Philly, you will face many challenges - you need to learn the market and know the neighborhood and the block and make sure all of your numbers are within reason, you need very reliable contractors, you need a to understand the permit process, you need to be familiar with market expectations.