Buffalo real estate transactions over $5,000 as listed in records of the Erie County clerk’s office for the week ending May 7. Highest price: $400,000 Average price: $75,265 Median price: $27,500 Number of Sales: 32 • 50 Depew Ave., Clarissa Willett; Brian Willett to Julie A. Gavin, $400,000. • 581 Colvin Ave., RJ Gullo Properties No. 1 Inc. to Hamri Garden Llc, $335,500. •3 Clarendon Place,...