In Tampa Bay, trailer parks were getting bought up all along the major corridors and replaced with shopping malls and rentals. Who knows where the old folks who used to live there moved to. I doubt they got a fair deal.

Edit: also the old time orange growers said men in black suits used to trespass on their property, then citrus disease "mysteriously" wiped them out. The groves are housing developments now. More property tax that way.