We have ppor and couple of IPs in Melbourne. Me and wife works payg+abn. We have never used broker and don't know how it works and also costs around it. We consider ourselves novice investors. We are planning to restructure our loans to get better rates, understand how much we can borrow more and potentially buy new properties if we can borrow more. There seem.to be lot of mortgage brokers around and like anything , there would be good and not so good ones. Any advice on how to pick the right broker for us? Thanks.