Hey Andrew! Not nearly as experienced as @Michael Swan (which btw I will be listening to that podcast as well because i'm really interested in how he got 230 units, thats just amazing). But me and my team have been investing in Ohio for a few years now and to me it seems like you might be analyzing too conservatively? Just as a point of reference we were in contract on 4 properties from the MLS in early April out of about 20 offers or so we sent out? Now I do believe that the Covid situation might have scared some sellers into accepting our lower offers but we do see deals out there.
Other couple things to point out, as rentals go we usually go for 2-4 units for the rentals and mostly just use the SFR for flips so that could also be another thing that's making our rent numbers more acceptable. As far as area we're in University heights, Shaker Heights, South Euclid, Cleveland Heights and are negotiating some properties in Maple Heights so besides maple heights I'd consider those areas the same B-ish grade you're looking for.
Lastly, wholesaling is not illegal in Ohio. I've been seeing that a few times on bigger pockets and I'm not sure where they are getting that from or if I'm missing something? We've wholesaled a few properties just in the last few months and know other people who are doing much larger volume than we are. I usually see that sentiment from agents who want to discourage wholesalers from starting but I haven't seen/heard any legislation passing in regards to that. Would love to know if I'm wrong tho, don't want to be breaking any laws.
Anyway just my 2 cents!