Squatter's rights in Massachusetts...
I and my family own a 100 foot wide piece of beach on a freshwater pond on the Cape. It has been in my family for almost 100 years (5 generations). There is no house, just the beach. No one in my family now lives on the Cape, but some of us visit the beach periodically during the summers. At some point, years ago, the owners of a cottage nearby asked if they could use the beach. They offered to keep the beach clean, and keep a sign on it saying "Private Beach, Keep Out". In return, we could park our cars on their land when we came down to use the beach. This arrangement has been working out just fine, except that when we asked them to pay half of the insurance on the property they refused. I was not happy about this, but my parents did not press the issue.
My concern right now is that this arrangement has been in place for close to 20 years, and I am wondering if they can claim some legal right to ownership of the beach. Our agreement with them is completely verbal. Could they claim squatter's rights, even though we are also using the beach, and pay taxes on it?