One workaround could be keeping a separate spreadsheet to track your adjusted tax basis accurately and only using Stessa for operational insights.You could also reach out to a cpa and see if they have a specific recommendation for software to use.  

I have been to RE meetups in the past with like-minded everyday investors pursuing similar goals, sharing stories and learning from each other, running through numbers, sharing network contacts, and even doing deals together.

Your basis in the entire property will be divided into each of the 6 units. 

That seems to be unrealistic cost basis.

Flip side, for a third of that you are trained to find properties using creative finance taking over existing low interest loans that cash flow and you are buying in decent neighborhoods with every day lunch box Joes that have kids and go to work and pay rent on time. 

Since there is a co-owner, you would have to purchase the property and it is really hard (if not impossible) to pull a HELOC as the basis for the purchase (since it is not your primary residence). 

Quote from @JD Martin: I would have to see actual data on a median & value adjusted basis to believe that OK is anywhere near Fl on a dollar for dollar comparison.

Our main carrier policy converts to vacant dwelling policy at completion for duration of term and can be renewed on case by case basis if unfinished or unsold.  

Been listening to bigger pockets for about a month now (literally everyday, at every moment I have spare time LoL) and am learning a lot.

I heard that PropStream updates this data on a weekly to monthly basis, whereas PropertyRadar updates the data daily, providing fresher leads.