Firms that sell mortgage servicing rights for a living are conducting more privately negotiated transactions these days, reserving the auction process for smaller deals, according to interviews with industry dealmakers. “We’ve seen a good amount of these lately,” said Steve Harris, managing director of MIAC Capital Markets, New York. “Word gets out who the buyers are; the sellers find out and they decide to do a privately negotiated deal. And there are companies out there with substantial portfolios [that are available for sale].” One selling firm that reportedly went the private route after trying an auction is...