The keys didn’t work to any units but one tenant let us walk through.

Or you can do cash for keys to get him out and find someone who can make payments on time and 3xs rent .

I would give him notice, and show up with your set of keys to let the work be complete.

im not sure if im posting this in the right place or not but i thought a forum full of innovative thinkers might have some creative ideasim trying help a seller solve their problem so i can purchase their housetheyve spelled it out so im going to cut/paste the conversationI own a home  with a co-owner who refuses to sell because a personal vendetta against me.

But keep searching sir and you're bound to come across something... and being ready to grab it when you find it is a big key as well because everything in Charlotte that even appears to be a good investment gets snatched in a matter of hours these days.

Definitely speak with key non-recourse lenders like First Western Federal Savings or North American Savings bank about their programs before developing a strategy. 

And 36 Other Key Financial Measures, Updated Edition3.  

Aside from property taxes, and analyzing rents in the area what other key factors should I be looking at to establish cap rates and potential profit?

The comp closest for you is 3710 Laurel Fork Drive, Dayton, OH 45415, which sold for 255k in Nov 2018, after being listed for 275k.

Traditional bank financing which has been the key for us.