A party cannot acquire good title by adverse possession against the beneficiary of a deed of trust that was recorded on the property before the alleged adverse possession began.  This is for third reasons.  First, the beneficiary has no right to possession of the property until after foreclosure on the deed of trust.  Since the beneficiary cannot oust the alleged adverse possessor, possession is not adverse to its interest in the property.  Second, upon foreclosure, the beneficiary (or other purchaser at the foreclosure sale) acquires title held by the trustor on the date he entered into the deed of trust, extinguishing all junior interests, such as the later alleged adverse possessor’s interest.  Third, the adverse possessor acquires only the interest held by the original owner on the date the adverse possession began–i.e., ownership subject to the prior deed of trust.