The National Park Trust identified 20 high-priority sites - including the Blue Ridge Parkway in North Carolina and Virginia and Everglades National Park in Florida - as areas with private property that could be sold.
There are areas with property that could be sold in many states
There were at least 20 states, because the 20 is only considered high priority, there are probably more, which means the word "many" is probably applicable
( z1 area :location-of ( z2 property :ARG1-of ( z3 sell :ARG1-of ( z4 possible ) :location ( z5 state :quant ( z6 many ) ) ) ) )