Also, who would be doing the measuring of the 600 feet?

In formulating what a bank will accept for a sales price, they start with an appraised value, deduct for carrying costs and they also generally have what is called an "REO stigma" that they can into consideration.The REO stigma is a measurable discount banks see in the market once they take back a property.

Sure, it may have appreciation but success and failure is measured by achievement of objectives and if the objective is cash flow, it can't be considered a success based on appreciation.

That’s super high level though and maybe still not the best measuring tool for analyzing markets. 

Yield measures risk.

"If you're not measuring, your just playing."

Success can be measured by the joy in your life and the amount of your free time.2. 

If not, why are they allowed to ask such in depth questionnaires, talk with providers at will, and take many in depth measures to ensure that:1) not only is there an actual disability but also 2) that there is an actual need / documented "nexus" for an esa? 

The PV company advocates for wiring all the PV panels in series and then letting any excess electricity from the panels balance equally through all three meters - that's technically the most cost effective for the whole property, but would mean I need to install a bunch of extra hardware to measure actual electricity usage. 

You're sacrificing cash flow (which actually produces a measurable return on your investment) for appreciation.