This sort of thing makes my blood boil as normally with developers there is another agenda hidden.
There was a cemetary in London sold in the mid eighties,it was actually sold for a pound,the corruption surrounding that still rumbles quietly on to this day.
This is only a long shot,as I dont know how your laws work in the states,but as there are service personnel buried,it could be worth getting in contact with the war graves comission.
Take care,
Rich.