John L. Mattingly Constr. Co. v. Hartford Underwriters Ins. Co.
2010 Md. LEXIS 327 (Md. July 27, 2010)

The Maryland Court of Appeals determined that the waivers of subrogation clause in AIA A107-1997 is ambiguous as to whether it encompasses losses sustained after completion of construction and final payment. As a result, the case was remanded to the Court of Special Appeals so that it could resolve the ambiguity by considering extrinsic evidence.

In 2002, K.B.K., Inc. and John L. Mattingly Construction Company, Inc. entered into AIA form contract number A107-1997 to build an Arby’s Restaurant. Section 16.4 of the Contract required K.B.K. to “purchase and maintain property insurance until final payment has been made” or until no person … other than K.B.K. had an insurable interest.” Section 16.5 of the Contract stated that K.B.K. and Mattingly “waived all rights against … each other and any of their subcontractors for damages covered by property insurance … applicable to the Work.”