Thanks to lousy origination profits posted over the past six months, mortgage bankers increasingly are boosting earnings through servicing-released arrangements, causing a mini-boom in flow transactions. “You might say we’re back to a normal operating environment where originations are cash-flow negative,” which is forcing lenders to book profits through MSR sales, said Jeff Levine, managing director of Houlihan Lokey, an investment banking firm. But Levine is...