MICHAEL GRASSMUECK, INC. v. McShane169 Wash. 2d 1021 Wash.2010Check Treatment 238 P.3d 503 (2010) MICHAEL GRASSMUECK, INC. v. McSHANE. No. 84568-9. Supreme Court of Washington, Department II. September 9, 2010. Disposition of Petition for Review Granted.