For 25 years my customers have enjoyed easement to the rear door of my business (bicycle shop) through the main section of another parking lot that adjoins my section of the lot. (The entire lot is aprox. 10,000 sq. ft., my section is aprox. 1550 sq. ft. My building is the N. boundary, the W. boundary is a building owned by a third party that is not involved, the E. and S. boundaries are the said adjoining parking lot. )The entire parking lot has been used on an indiscriminate basis for the three businesses involved. Recently I was offered a chance to buy the building, which I accepted. Now the primary parking lot owner has indicated that my customers will no longer be allowed to park in the lot. Is he able to deny me easement to access the back door of my business as well?