Just food for thought as you are analyzing this. Could there be additional landowners who might qualify but are not ferreted out in the data? It says "640 contiguous acres" in the bill. I don't *think* that means it needs to be one parcel. I don't know how you could pull out landowners who own smaller, contiguous acreage, of which the deeded parcels each are less than 640 acres, but in aggregate meet that 640 contiguous acreage requirement.
I realize I'm in the weeds, and don't know if that is common up there or not. But it seems to be pretty common around here.
I dissolved ownership by distinct landowner, so I would catch those. The data I created may very well overstate, and once I know the bill hearing date I will put a lot more effort into creating a clean data set that is more reliable.