PennMary Waite to Butler County Airport Authority at Route 72 for $515,000.

Slippery Rock BoroughDaniel St. Sauveur to Adam and Randy Wilcox at 339 Center St. for $100,000.

Slippery Rock TownshipGL McKnight Inc. to Ladebu Construction at Weathervane Drive and Vista Drive for $37,500.

ValenciaKeith Newkirk to Bank New York trustee at 66 Sterrett St. for $2,001 by sheriff’s deed.

VenangoJames Green to Linda Hopper at Cemetery Road for $18,900.Donald Montgomery to Associates Housing Finance LLC at 709 Cemetery Road for $3,962 by sheriff’s deed.

WashingtonHomecomings Financial Network Inc. to Stephen and Brandi Stroup at 115 Railroad St. for $10,000.

ZelienopleRobin Gable to Gregory and Lois Young at 303 S. Green Lane for $50,000.John Grence to Jean Watkins at 7 Zelie Drive for $189,900.Real estate transactions provided by: RealSTATS, 1911 E. Carson St., Pittsburgh. 412-381-3880.