I'm becoming aware of the Case-Shiller Index and the Eviction Lab data as a big picture source of information.

Which means sales data is not public information.

Do I need to open escrow on the land first to attain geographical data?

On a renovation project, some of the most important data points are;- Property type (e.g.

If you are not able to find market data then you could value as indicated above which is known as the residual method. 

My VAs handle research, marketing tasks, data logging, and a few other general tasks.

According to the data Winter Garden is "Size/ranked" 150.

It's the biggest and most diversified commercial real estate fund out there (by commercial real estate asset class, geography, and position in the capital stack), invests in core plus which has historically outperformed value-added (which is the typical strategy of most nonaccredited funds) and has the best withdrawal terms in the industry.

., data entry, paper pushing, miscellaneous office tasks, etc.).

Contact the utility provider and get an historical average based on the last year of use.