Sir Nicholas Mostyn practised for 30 years at the family law bar in London, the last 13 of which as a QC. He specialised in financial work and appeared in many of the leading cases, notably White v White, Miller v Miller and Mills v McCartney. His work took him overseas and he did numerous cases in the Cayman Islands, Hong Kong and Gibraltar. Since his appointment to the High Court in 2010 he has delivered a number of important judgments.
Sir Nicholas was a memorable keynote speaker at the National Family Law Conference in Adelaide in April 2008. He has accepted an invitation as a keynote speaker at the 19th National Family Law Conference to be held in Adelaide from 27-30 March 2022.