The Maryland Court of Special Appeals recently dismissed a plaintiff’s appeal as moot, providing interesting guidance on joinder of asbestos and tobacco defendants.The plaintiff in Stidham v. R.J. Reynolds Tobacco Co., 2015 WL 5076895 (Md. Ct. Spec. App., Aug. 27, 2015), had filed a complaint against multiple asbestos manufacturers and distributors contending that he developed lung cancer because of his exposure to asbestos.The plaintiff amended the complaint by adding several tobacco companies as defendants and …