If your state has the �seven year law� or something similar and your neighbor has been maintaining that two acres, you might have a problem. I ordered this map of my place from the tax man to set the record straight with my neighbor, she claimed she owned 1 � acre of my property, come to find out I own one acre of what she thought was her property. An acre goes for $4000.00 around these parts, so we tend to watch our property lines pretty close.