A new Canadian mortgage-broker consolidator is offering franchise opportunities to brokers in the U.S., touting a business model designed to help small and medium size originators compete with larger national lenders. MortgageBrokers.com Holdings, founded in January of this year, says smaller shops will find it harder to compete in a rising interest-rate environment. The company aims to reduce operating costs for originators, expand its national brand, invest in technology and offer a diversified product line…