If you are coming from outside Australia, it is common not to be familiar with how mortgage brokers work. In many countries, this role either does not exist or is seen as an extra cost in the process. In Australia, it works differently. A key concept explains why: the Best Interest Duty. What does Best Interest Duty mean? Best Interest Duty is a legal obligation that applies to mortgage brokers in Australia. It requires brokers to act in the best interest of their client at a