Here in California you cannot be kept from your land. An easement would be granted you usually with the most direct but least costly access to a road. I would be suprised if there was any place in this country where you would not be able to get access.
Absolutely.....consult an attorney. I'm certain they will check the local and state laws that apply as well a title records for the property.
Common sense would say you are protected.......however, common sense is not always available.
The Eckler Team