Both Garrick and his younger brother
James Francis (born 10 January 1836) were sent to Sydney solicitors to learn the legal trade. The older brother spent time at Andrew McCulloch's office, and after that he worked for Robert Nicholls. After being admitted to the New South Wales' bar, he became a partner with Rowley and Holdsworth. James Francis moved to
Brisbane in 1861 where only four attorneys were in practice at that time, whilst Francis James emigrated to New Zealand in February 1864. He found a partner and set up the firm of Garrick and
Cowlishaw, with their initial office fronting
Cathedral Square, Christchurch. In 1883, they took on another partner and the practice was then known as Garrick, Cowlishaw and
Fisher. Garrick was highly respected in the New Zealand bar for his speaking talent. ==Political career==