The Blackstone Group has emerged as the “Big Kahuna” of mortgage company acquisitions this year, gobbling up – or agreeing to gobble up – at least five mortgage banking firms or a majority of their assets. To date, most of the purchases have centered on small- to medium-sized originators, except for its latest conquest: a majority stake in Stearns Holdings, LLC, parent company of Stearns Lending, the nation’s 12th largest originator. Although Blackstone is publicly traded ...