Another Cincinnati accounting firm is merging with a larger firm, continuing the frenzy of mergers in the local accounting business the past two years. Ossege Combs & Mann will merge as of July 1 with Carmel, Ind.-based Blue & Co. to form a much bigger company. Ossege Combs & Mann had been Greater Cincinnati's 24th-largest accounting firm, according to the most recent Courier research. It has nine CPAs and 17 employees, managing partner Greg Ossege told me. Blue has 340 people in 10 offices...