My question involves real estate located in the State of: Massachusetts

I own a parcel which I and two others own the right to use for any purpose a street or road can be used for in my town. They use it to access their homes.

A third person is claiming a right to use my parcel as a road based on an easement granted by the former owner of my parcel to his then neighbors, to whom he was very close. His intention was to give access so that his then neighbor could build a house for a relative. Although this is not specified in the language of the easement, he is willing to sign an affidavit confirming it. He included no reference in the easement to heirs or assigns as he did in the easements he granted to the two others.

The house was never built, the town has since declared the lot unbuildable and eventually all the properties passed to new owners. The person claiming the right to use my parcel for a road has another access to their property. They refuse to contribute to the cost of snow removal which the two people who have clear rights do. There is no existing agreement concerning maintenance of the road over my parcel.

Can I deny this person the right to use the "road"? If not, can I demand that they contribute to plowing and maintenance or am I responsible for this in the absence of a recorded agreement?