Billboards: Commercial Lot & Billboard Easement

[David VanSteenkiste]

I know almost nothing about billboard investing except what I recently learned on a Ken McElroy podcast. Here is what I have. I recently acquired a prime commercial lot on the main drag in Coolidge Arizona. Bought the lot for almost nothing and will flip it for a nice 2,000% (not a typo two thousand percent) profit. But before selling it I want to investigate creating a Billboard Easement so that I can keep that easement and either build my own billboard and lease it out or whatever. I just want to create the option prior to selling it. 

I understand that the first call needs to be to planning and zoning to see what they will allow. But beyond that, what do I do, who do I call next? 

*BTW, if there is a billboard expert here who can help me, I am happy to help you understand how to find and flip land for huge margins.