The long interest rate rally has squelched the secondary market in bulk servicing trades and cooled whole-company acquisitions, and servicing brokers suggest that there could be some bumps ahead as the market returns to normal. “Mortgage banking has been extremely challenged over the past year,” said Thom Donatacci, managing director at Cohane Rafferty Securities, during a conference sponsored by Executive Enterprise Institute. “Mortgage banking has been stress tested, but unlike your cardiologist, interest