Duffy, who had been at Hamptons for six and a half years, is on gardening leave for six months.
He is considering opportunities in broking and lending although he says he is likely to remain in the intermediary mortgage market.
Duffy says: “I have a couple of opportunities to think about. It has yet to be decided whether I will take a broker or a lender role. There are some exciting challenges out there. I will take some time off and spend some more time with my family.”
He will complete some Hamptons-related business for broker alliance Concordia before he severs his ties.
Hamptons will be run by technical director Jonathan Cornell and compliance director Paul Williams while it searches for a replacement, with Cornell saying he would like the job.