Legal Question in Real Estate Law in Oregon

It depends on how you used the wedge. If you just grew grass on it, you would probably lose. If you built a shed on it, you may well win. Here is the law, below. Note it requires that you have "actual, open, notorious, exclusive, hostile and continuous possession of the property for a period of 10 years." That means that it must be very clear that you were using the property and that your use of it was exclusive and precluded use of it by the neighbor who actually owned it.

ORS 105.620 Acquiring title by adverse possession

(1) A person may acquire fee simple title to real property by adverse possession only if:

(a) The person and the predecessors in interest of the person have maintained actual, open, notorious, exclusive, hostile and continuous possession of the property for a period of 10 years;

(b) At the time the person claiming by adverse possession or the persons predecessors in interest, first entered into possession of the property, the person entering into possession had the honest belief that the person was the actual owner of the property and that belief:

(A) By the person and the persons predecessor in interest, continued throughout the vesting period;

(B) Had an objective basis; and

(C) Was reasonable under the particular circumstances; and

(c) The person proves each of the elements set out in this section by clear and convincing evidence.