Cornerstone Aircraft Sales, Inc.

Cornerstone Aircraft Sales, Inc. is an aircraft brokerage based at Galt Airport (10C) in McHenry County, Illinois, near Wonder Lake. The company describes itself as pilot-led. Its team page names Anderson Klein as general manager and broker, a commercial multi-engine pilot and flight instructor, and Owen Belasco as an aircraft broker.

The firm represents both buyers and sellers. On the buying side it evaluates aircraft, coordinates inspections and checks title status. For sellers it handles marketing, buyer contact, negotiation and coordination through closing.

It also sells individual services without full representation, including photography, detailing, logbook scanning and appraisals, and can refer clients to inspection, maintenance and training providers.

At the time of review, its only listing was a piston single-engine Mooney, which suggests a focus on light general aviation aircraft rather than business jets. Buyers interested in turbine aircraft should ask whether the firm handles them.