(April 4, 2017, 9:29 AM EDT) -- CHICAGO — An Illinois appeals panel on March 31 held that second- and third-level excess insurers' exhaustion provisions were unambiguous and must be enforced as written, reversing and remanding a lower court’s ruling against the excess insurers in a coverage dispute arising from the collapse of an $11 million hedge fund (A.R. Thane Ritchie, et al. v. Arch Specialty Ins. Co., et al., No. 1-16-0413, Ill. App., 1st Dist., 6th Div., 2017 Ill. App. Unpub. LEXIS 689)....