Mealey's (April 12, 2019, 9:55 AM EDT) -- SANTA ANA, Calif. — A nursing facility’s arbitration agreement was unenforceable against an elderly resident who filed a lawsuit raising allegations of elder abuse and negligence, a California appeals panel affirmed April 2 because the nursing facility failed to show that the resident’s son was authorized to sign the agreement for his mother (Sedigheh Tahmasebi v. Gordon Lane Healthcare LLC, et al., No. G056154, Calif. App., 4th Dist., Div. 3, 2019 Cal. App. Unpub. LEXIS 2307)....