The decision to add practitioner members was based on brokers who spend at least 70% of their time in front of customers.
Robert Sinclair, chief executive, said: “The Board felt it was important at this time to ensure that we heard more opinions from those who face the daily task of matching customers to products and working with lenders to ensure customers can get a mortgage.
“These are testing times and by adding this practical perspective it will further strengthen AMI’s ability to fully represent all firms.”
Montlake said he was honoured by the appointment.
He said: “Having been involved with AMI for a number of years I feel that the time is right to move to the next level and take a more active role in AMI life.
“The mortgage industry and the intermediaries role within it have become something that I am deeply passionate about and as such I want to do as much as I can to help promote and protect our role in the current environment."
John Whyte added: “I want to represent smaller firms and ensure that independent mortgage advice is available and accessible to all.
“It is critical that regulators recognise the value that many smaller sized intermediaries add. The market needs to recognise the important role intermediaries play in being the consumers champion whilst being able to make a fair and honest living.”