Central Florida counties continue to rank among the growing Single Family Rental (SFR) markets for the first quarter of 2017.

I would keep going in that direction (be it top ranked personal finance podcasts or books) and I think you will be in good shape in your overall journey. 

I have been all through this site multiple times and, forgive me if I somehow have missed it, have been unable to find a spreadsheet that could be considered to meet the following (or most of) elements. 

So there's an element of risk there.  

Here's my top 3 rankings.1) The investor is not accredited and hence does not qualify.2) The second thing is lack of liquidity or timing.3) Diversification - they may be over concentrated in an asset class or geography or both.Ironically, its rarely that they don't like the market, deal or sponsor.   

Are there any other elements I should pay particular attention to at this point in the process?

Oven not working is usually one of three things... defective element, do it yourself cheep fix, fuse, do it yourself cheep fix, computer control panel, replace with used appliance...$200..  

It's great to have a seasoned pro join our ranks.

—Except as provided in subsection (2) and in s. 95.051 and elsewhere in these statutes, the time within which an action shall be begun under any statute of limitations runs from the time the cause of action accrues.(1) A cause of action accrues when the last element constituting the cause of action occurs.

Since you didn't mention a specific REI area of interest I added the below links from three of the most popular niches for your review and selection of one or all.https://www.biggerpockets.com/renewsblog/2015/01/31/ultimate-beginners-guide-real-estate-wholesaling-2/ (Ultimate beginners guide to wholesaling)http://www.biggerpockets.com/renewsblog/2014/01/07/flipping-houses/ (step by step guide to flips)http://www.biggerpockets.com/renewsblog/2013/02/22/buying-rental-property/ (how to buy a rental property)To be more successful, you simply have to work on the other elements to progress your REI pursuit.