My grandfather owns a huge trailer park under a dam. The government stepped in, a la eminent domain, to widen the dam and he got OVER what it was worth. I believe he had a lawyer though, so good advice. Tell your friend to get some help!
Once again... I think ED is unfair in most cases. But in this case, I agree with most of the responses. If it was for sale anyway, and it was up for over 5 years, perhaps he got fair market value? Since nationwide the values are going to dip, maybe it was good timing?
I was wondering what NC natives thought of all this progress... McMansions down the road from old farm houses. The population of the world is only going to grow... cash out and enjoy I guess?