The 2025 listing of leading West Australian Family & Divorce Mediators details mediators operating in the WA legal market who have been identified by the state’s family law solicitors for their expertise and abilities in the area of family law.
Preeminent
Susan Duncanson SC, SJD Mediation
Simon Moncrieff SC, John Toohey Chambers
Alan Moroni
Leading
Stephen Crooks, 77 Thomas St Subiaco
David Monaghan
Andrew Davies, O’Sullivan Davies
Robyn Hadley, Hadley Mediations
Colin Kaeser, Kaeser Mediated Solutions
Heinrich Moser, Stephen Thackray Chambers
Recommended
Kerrie Harms, Kerrie Harms Mediation
Lynette Hill, Lynette Hill – Mediation & Dispute Resolution
Rachel Oakley, John Toohey Chambers
Monica O’Brien, Family Matters WA
JD Roussety, Choice Family Dispute Resolution & Mediation
Previous editions
2025 edition published November 2024
Preeminent
Stephen Crooks, 77 Thomas St Subiaco
Susan Duncanson SC, SJD Mediation
Simon Moncrieff SC, John Toohey Chambers
Alan Moroni
Leading
William Carr, Perth Divorce Mediation
David Monaghan
Andrew Davies, O'Sullivan Davies
Colin Kaeser, Kaeser Mediated Solutions
Heinrich Moser, Stephen Thackray Chambers
Recommended
Kerrie Harms, Kerrie Harms Mediation
Lynette Hill, Legal Aid WA
Rachel Oakley, John Toohey Chambers
Monica O'Brien, Family Matters WA
JD Roussety, Choice Family Dispute Resolution & Mediation
2024 edition published November 2023
Preeminent
Stephen Crooks, 77 Thomas St Subiaco
David Monaghan
Alan Moroni
Heinrich Moser, Stephen Thackray Chambers
Leading
William Carr, Perth Divorce Mediation
Andrew Davies, O'Sullivan Davies
Colin Kaeser, Kaeser Mediated Solutions
Recommended
Jane Crisford
Susan Duncanson SC
Robyn Hadley, Kim Wilson & Co
Kerrie Harms, Kerrie Harms Mediation
Lynette Hill, Legal Aid WA
Simon Moncrieff SC, John Toohey Chambers
Rachel Oakley, John Toohey Chambers
Monica O'Brien, Family Matters WA
JD Roussety, Choice Family Dispute Resolution & Mediation
2023 edition published December 2022
Preeminent
Stephen Crooks, 77 Thomas St Subiaco
Heinrich Moser, Stephen Thackray Chambers
Leading
William Carr, Perth Divorce Mediation
David Monaghan
Alan Moroni
Rachel Oakley, John Toohey Chambers
Recommended
Jane Crisford
Andrew Davies, O'Sullivan Davies
Simon French
Robyn Hadley, Kim Wilson & Co
Kerrie Harms, Kerrie Harms Mediation
Lynette Hill, Legal Aid
Colin Kaeser, Kaeser Mediated Solutions
Monica O'Brien, Family Matters WA
Vincent Tan, Clairs Keeley
2022 edition published November 2021
Preeminent
Stephen Crooks, 77 Thomas St Subiaco
Heinrich Moser, Stephen Thackray Chambers
Leading
William Carr, Perth Divorce Mediation
David Monaghan
Rachel Oakley, John Toohey Chambers
Recommended
Jane Crisford
Andrew Davies, O'Sullivan Davies
Robyn Hadley, Kim Wilson & Co
Lynette Hill, Legal Aid
Lucy Thomas, Paterson & Dowding
2021 edition published December 2020
Preeminent
Jane Crisford
Stephen Crooks, 77 Thomas St Subiaco
Heinrich Moser, Stephen Thackray Chambers
Leading
David Monaghan
Recommended
William Carr, Carr & Co
Andrew Davies, O'Sullivan Davies
Robyn Hadley, Kim Wilson & Co
Kerrie Harms, Kerrie Harms Dispute Resolution & Mediation
Lynette Hill, Legal Aid
Rachel Oakeley, John Toohey Chambers
2020 edition published June 2020
Preeminent
Jane Crisford
Stephen Crooks, 77 Thomas St Subiaco
Leading
Heinrich Moser, Stephen Thackray Chambers
David Monaghan
Recommended
William Carr, Carr & Co
Andrew Davies, O'Sullivan Davies
Robyn Hadley, Kim Wilson & Co
Kerrie Harms, Kerrie Harms Dispute Resolution & Mediation
Lynette Hill, Legal Aid
Jenny James, James Legal
Rachel Oakeley, John Toohey Chambers
Kim Wilson SC, Kim Wilson & Co
2019 edition published August 2019
Leading
Jane Crisford
Stephen Crooks, 77 Thomas St Subiaco
Heinrich Moser, 204 Hampden Rd Nedlands
David Monaghan
Recommended
William Carr, Carr & Co
Andrew Davies, O'Sullivan Davies
Simon French
Robyn Hadley, Kim Wilson & Co
Jenny James, James Legal
Rachel Oakeley, John Toohey Chambers
Julienne Penny
Kim Wilson SC, Kim Wilson & Co
2018 edition published August 2018
Leading
Jane Crisford
Stephen Crooks
Recommended
Andrew Davies, O'Sullivan Davies
Simon French, Dwyer Durack
Robyn Hadley, Kim Wilson & Co
Jenny James, James Legal
David Monaghan
Heinrich Moser
Rachel Oakley, John Toohey Chambers
Trevor O'Sullivan, O'Sullivan Davies
Julienne Penny
Ian Shann, Move On Mediation
Kim Wilson SC, Kim Wilson & Co
2017 edition published September 2017
Preeminent
Jane Crisford
Stephen Crooks
Leading
Heinrich Moser
Julienne Penny
Recommended
William Carr, Carr & Co
Andrew Davies, O'Sullivan Davies
Simon French, Dwyer Durack
Kerrie Harms
Elizabeth Hynes, DCH Legal Group
Jenny James, James Legal
Rachel Oakley, John Toohey Chambers
Trevor O'Sullivan, O'Sullivan Davies
Kim Wilson SC, Kim Wilson & Co
2016 edition published September 2016
Leading
Stephen Crooks, Thomas St Subiaco
Heinrich Moser, Stone Chambers
Julienne Penny, Adelaide St Fremantle
Recommended
Jane Crisford
Andrew Davies, O'Sullivan Davies
Simon French, Dwyer Durack
Robyn Hadley, Kim Wilson & Co
Kerrie Harms, Newcastle St Leederville
Jenny James, James Legal
Trevor O'Sullivan, O'Sullivan Davies