John Dixon and Associates will conduct an absolute auction Thursday of 10 townhomes as part of a larger auction in the Graystone Townhomes subdivision near the intersection of Burkhalter Road and Pretoria Rushing Road. At a time when sellers are increasingly anxious to liquidate real estate holdings, the absolute auction format is becoming much more commonplace. "It is true that we have not seen very many absolute auctions in the last several years, but they are becoming more prevalent today," said John Dixon, owner of John Dixon & Associates.