Before joining Foley Hoag, Catherine practiced for five years in Auckland, New Zealand at Minter Ellison Rudd Watts and Simpson Grierson. Her corporate work there focused on acquisitions and dispositions, commercial contracts, and general company advice. She remains a member of the New Zealand Law Society.

Catherine also has an active domestic corporate and securities practice. She advises a number of companies, including start-up operations, on general corporate matters, helps hedge fund advisers with investment fund formation and regulatory compliance, and counsels on mergers and acquisitions.