Kevin Duffy will replace him, taking up the helm as managing director.
Since 2000, Clifford has developed Mortgageforce into a national brokerage from a small team of franchise brokers.
He will be stepping down from the chief executive position on December 3.
Kevin Duffy, formerly chief operating officer at Mortgageforce, will have responsibility for the day-to-day management of the company.
Clifford says: “Mortgageforce has been an integral part of my life for nearly a decade and it has given me immense pleasure to see it grow into the much-admired business it is today.
“I will always remain a close friend of the company and look forward to watching its continued success with pride.”