By Richard MizeReal estate editor rmize@oklahoman.comApartment sale prices surged the first half of the year, urged on by persistent demand, untouched by the coronavirus, unemployment, unemployed renters, business closures and other economic disruption — but it was all due to timing. The deals were underwritten based on rental income in place before COVID-19, said Mike Buhl, owner and managing broker of Commercial Realty Resources Co.Read more on NewsOK.com