What we reported: McKinney homes are taking longer to sell, according to local realtors. McKinney homes sat on the market for an average of 49 days in May 2018 compared with 38 days in May 2017. The latest: McKinney is seeing a buyer’s market, and homes are continuing to stay on the market longer, local real estate agent Sean Nance said. Nance said he expects homes to stay on the market longer in January through March 2019.