United States Court of Appeals For the Seventh Circuit ____________________ No. 22-1217 BEACH FORWARDERS, INC., Plaintiff-Appellee, v. SERVICE BY AIR, INC., Defendant-Appellant. ____________________

Appeal from the United States District Court for the Northern District of Illinois, Eastern Division. No. 1:21-cv-56 — Gary Feinerman, Judge. ____________________

ARGUED OCTOBER 25, 2022 — DECIDED AUGUST 7, 2023 ____________________

Before SYKES, Chief Judge, and FLAUM and LEE, Circuit Judges. LEE, Circuit Judge. Service By Air, Inc., a shipping and lo- gistics company, hired Beach Forwarders, Inc. as its exclusive agent in Virginia. After ten years, the relationship soured, and Beach Forwarders wanted out. Service By Air told Beach For- warders it could not walk away without breaching their per- petual contract. Beach Forwarders thought differently and sought a declaratory judgment that it could and did lawfully 2