Hi! I purchased my home in 1989 and was told I had a road easement into my driveway over a neighbors road, about 50 feet. It is not on my deed but we have used it with no problem until now. All of a sudden because of hard feelings the neighbor says they are going to block our right of way in 2 weeks! I live in Pennsylvania and was wondering if this is possible for them to do after all these years?