I'm Lucy, and I'd be happy to answer your questions today. I'm sorry to hear about your situation.
In Massachusetts, the time period required to establish a right to use someone's land is 20 years. That unfortunately means that there isn't any right to continue using the property without the owner's consent. One option is to offer to buy an easement from the neighbor, which would give you a right to forever use that tract of land, even if it gets sold again.
It is possible to file for an easement by necessity; however, there are two issues. First, easements by necessity are typically reserved for a situation where a person cannot access a public road from their property at all. If you can leave your front door and access a public road, an easement is more likely. The second issue is that, even if a judge rules in your favor, you will still have to pay for the right to use the land. Which means that it could help to try negotiating with the neighbor before going to court.
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