He still periodically undertakes investigations and reviews on behalf of clients. As well as growing and promoting the association, he is now engaged in consolidating it with the Freehills Alumni association.
John joined the firm in 1972 as a trainee and qualified into the Litigation Department, where he became a partner in 1982. In 1990 he started the firm's highly successful Employment Group. He established a reputation as one of the top employment lawyers, particularly in contentious employment matters, handling many high profile and reported matters. John retired as a partner in 2009, but continued as a consultant in the Employment Group until 2012.