John is a leading specialist in Succession Law and author of a number of definitive publications on the subject. These include: Wills Probate & Administration Practice (Queensland) and Family Provision in Australia (an estate litigation text), of which he is co-author with Mr Bruce Nickel.
- past President of the Queensland Law Society
- former Chairman of the Queensland Law Society’s Succession Law Committee and of its Advisory Committee on Specialist Accreditation (succession law)
- Adjunct Professor at the T. C. Beirne School of Law at the University of Queensland
- Chair of the Queensland Community Foundation and regular presenter at seminars dealing with succession law issues.
For many years, John was the Director of Legal Practice of the Law Faculty at the Queensland University of Technology (QUT), having responsibility for the faculty’s legal training programs for graduates seeking admission as solicitors or barristers in the state. He designed and delivered QUT’s Estate Planning unit for the faculty’s LL.M. by coursework degree and was lecturer in charge of Professional Responsibility, the compulsory legal ethics unit in QUT’s LL.B program. John retired from QUT in 1999 to return to full-time private practice with de Groots.