(October 26, 2017, 3:06 PM EDT) -- SEATTLE — A trial court erred in granting a motion for summary judgment in favor of a son who served as his parents’ durable power of attorney on a claim alleging that the son unduly influenced his parents’ decisions regarding their estate because the son failed to provide clear and convincing evidence that he did not assert undue influence over his parents, the Division I Washington Court of Appeals said Oct. 23 (Kimberly A. Hansen v. Mark A. Rozgay et al., No. 74636-7-I, Wash. App., Div. 1, 2017 Wash. App. LEXIS 2417)....