Since you have verified this couple owns the property, you are good there. 

But new investors want that NET couple hundred bucks in month 1.  

The comp house will likely be owner occupied by a couple, both with professional jobs. 

Quote from @Akshay Bhaskaran: Me and my wife are Residential Real Estate Investors for the past couple years.

Someone started bushhogging and surveying two parcels beside each other a couple of days ago (one of them being the one I have the tax deed for).

and even if you aren't going to do an inspection, can you walk it with a couple contractors?

Even if these relationships don't go anywhere, you'll get a lot from just having a couple of calls.Next I would try to find some local investment groups/communities and try to chat with as many investors as you can to get an idea how other's started out in your market.

Here in TN we issue POQ within a couple of days of rent being overdue, usually giving them 14 days to correct before official eviction proceedings start.

I have a couple of single family homes in Cincinnati, but most of my portfolio is in Columbus.

Ask their customer service to walk you through the above options if needed.It shouldn't take more than a couple hours of research to try out the top platforms and identify which feels the best for you.