He's SELLING property. He's not threatening anything. He's simply saying "You had free enjoyment of the lake when it was someone else's lake to provide enjoyment of for free. Now it's my lake and the free ride's over." If they want their view of the lake, they'll have to make it their lake. It isn't extortion at all.I suggest that the county condemn the land. Otherwise various extralegal suggestions might be found: Burning things, clubbing people, killing people, so on.