Legal Question in Real Estate Law in California

Real property sales are usually accompanied by, and dependent upon,. descriptions of the sold property that go well beyond the address. For example, a deed description of the property sold would usually mention the assessor's parcel number. Also, how likely is it that the same seller would own property with nearly identical addresses? In addition, "almost exactly" isn't the same as "exactly." I think you need to tell LawGuru what has happened in more detail. For a situation that rather obviously involves some rather complex legal issues, you haven't provided nearly enough detail. We are left with the feeling that you are looking for an easy "one size fits all" answer to a problem that may be very complex.