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Normally, an easement runs with the land, meaning it is passed on to the buyer.
The exception to this is if the easement is particularly worded so as to terminate if the property is conveyed to someone else. If this is the case, the easement would then be terminated.
But even if this was the case, the new owner could still get an easement - a landlocked property is generally against public policy. The new owner would then likely be able to get an easement by necessity from the Court if there was truly no other way to enter the property. If so, the Court would rule on a least obtrusive way for ingress/egress.
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