A signed work proposal and unsigned agreement were sufficient to create a "written agreement" to create coverage to the contractor as an additional insured. West Bend Mut. Ins. Co. v. DJW-Ridgeway Bldg. Consultants, Inc., 2015 Ill. App. LEXIS 391 (Ill. Ct. App. May 19. 2015).
Ridgeway was the general contractor for construction