also what part of columbus ohio is considered good, low on crime, fast developing yet still affordable to buy a house? 

Simply report your accurate rents and expenses which you should be tracking as well and not simply relying on your property management company and their reporting. 

I’m afraid your snail mail marketing campaign fails on all four criteria.The successful wholesalers I know agree that a MINIMUM of $10,000 PER MONTH needs to be spent on marketing/advertising to have enough “deal flow” to ensure a viable business.  

I live here on Maui and would welcome partnering with you.

Finding deals can be done from on market with agents, cold, calling, mailers, etc.

One of my goals this quarter is to post on REI forums and connect with other investors to network and learn more.

@Nicholas L.Yes, one of the portfolios is willing to carry a note on a large portion of the transaction. 

I've previoulsy focused on flipping houses and residential sales but now that I'm in Florida full time I'm strongly considering starting my own property management company for residential leases.

Whether or not you would benefit from a cost segregation study depends on multiple factors. 

You are well on your way tho to wealth building.