[Oski]

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Depends on your state laws. In MA & RI, if the ingress has been used for over a certain amount of time without objection, that's "open and notorious use" and that creates an easment in and of itself.

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True: but, there are time limits required as well. However, your point is good ... there is a legitimate chance this guy can not only have a perpetual easment declared in his favor (without him having to pay you jack-[censored]) he may even have a claim for adverse possession which would give him the fee to that portion of the land.

Again, don't mess around, get an attorney.