What if you bought it, subdivided it (if possible), and sold the part(s) you don't need/want?
If the "extra part(s) sell for enough, you might have enough to own your own part at no cost.
I would contact a local real estate professional to help with this answer and to save time and money.
(I'm on the Cape, but I can help you choose a local pro if you want help doing so.)
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