Constitutional stuff is fun for me and seldom (but not never) what I get paid to do. I'll through in my 2 cents on those issues.
...I'm going too need some $$$ to look closely at adverse possession.
In these days of plats and HOA common areas, it surprises me that this stuff doesn't come up more often. Professionally, I've seen what happens when there's a discrepancy between the zoning, the plat, the survey, and what got built. It isn't pretty. And it certainly isn't simple.