Karen Tatterson has developed a strong a loyal client base over the years due to her personalised approach. She constantly keeps in touch with clients when their loans are due to expire, or if she simply hears something in the market that may be of interest to a particular client. Tatterson runs her own brokerage, Foundation Mortgage Services, under the license of Loan Market. She advises clients in the Dannemora, Howick, Beachlands, Maraetai and Flat Bush, along with surrounding suburbs. In 2018, Tatterson was awarded the coveted Corby-Mills Brokers Choice Award.