Haven't flown into SDL, but been to Phoenix several times on business, and have some friends there. Whenever I hear "Scottsdale" from folks, it's always accompanied by some comment about all the wealth in the area "Snots-dale, etc." Looking at Google Maps, it looks like SDL is hemmed in on all sides by development. And dang, there is an awful lot of turbine aircraft parked there. I wish the Greenview folks luck in what they're trying to do, and will be interested to see what you aviation attorney comes up with.
Regarding this below pulled from savescottsdalega.org, I gotta ask, since the issue of hangar usage and dormant aircraft has been brought up before: 100 parking spots? How many have an aircraft parked in them? How many of those aircraft move on a regular basis?