One thing I think I would do is either hire a professional market research company and/or get a local high school or college marketing class to do market research and surveys to see if there is interest and demand. 

That is sort of the social studies class answer.

You take a short class 30 minutes over the phone and once you finish this process you typically can save around 1% off your rate!

I have attended the first class.

They are in B class neighborhoods close to A neighborhoods and good proximity to hospitals, downtown, The Domain, etc. 

For a while I looked into medium size deals like 30-50 units in class B neighborhoods, but ultimately could not negotiate a deal to the point where it would have made financial sense.

My main focus is Class B and maybe some C+ properties around NE Columbus, as well as outside 270 from the North to the east side.

Some can execute on the lower tier assets and transition out but it is a far more difficult asset class to operate and exit than most realize and many fail.

I can show you some really good stats about it and all of the different sub markets so you know what, in general, is a class A, B, C or worse and what markets to stay away from. 

No matter where you choose to invest, please keep in mind the following (copy & paste):--------------------------------------------------------------------------------------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 Class A property in Class D area, what quality of tenant will you get?