John was admitted to practice in the United Kingdom in 1972. He worked in the West End of London with Manches & Co, until emigrating to Australia in 1974.
John worked with Dwyer Durack & Dunphy for 2 years prior to joining Peter Dowding at Paterson & Dowding with a brief to set up a union based industrial and litigation practice.
As a partner in Paterson & Dowding John set up a significant practice in representing individuals and unions in various industrial tribunals. He also built up a substantial personal injury and general plaintiff orientated practice dealing with all aspects of workers compensation, industrial law and civil and personal injury litigation.
In 1988 John set up an insurance based practice with Mark Greenland at Greenland Brooksby.
Greenland Brooksby operated for a period of 18 years until John was appointed a Director and in-house counsel at WHL Legal.