It is very likely you will need to contact a lawyer. It sounds to me like you have a problem with easements. In oregon, there is a provision for easements for landlocked parcels, but they are generally disfavored. You may also have an easement, or right to use, based upon an adverse posession theory. It appears that english is not your first language, so it would be very adviseable for you to contact an attorney.
I'm sorry to hear of your situation. Based on the information provided, I believe it would be inappropriate for a neighboring landowner restrict access to your land, especially if it is the only access point.
Our office is just up the road in Astoria and we would be happy to take a look at this matter for you. Give us a call (503) 325-1055.
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The question is whether you have any easement rights or not. You should check the title to your property to determine if you have an easement agreement. If you do not have a written agreement there may be the basis for a prescriptive easement, and to get that will require you to hire an attorney.
I assume your question is about easements. Are you from another country? It is hard to understand, but if it is about access, I agree you need to consult a lawyer?
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