Mark has maintained a pro bono commitment to the Otara Citizens’ Advice Bureau since the mid-90s.
He spent seven years as a trustee (with responsibility for finance) on the board of a decile one school in East Tamaki. He spent two years as a selector for Gymsports New Zealand (selecting athletes for Commonwealth Games and World Championships).
He mediates for the New Zealand Law Society Lawyers Complaints Service without charge, and undertakes other pro bono mediations.
He has been involved in various other charitable and pro bono work.
From August 2019, he has committed to funding the planting of one native tree for each participant in his mediations, via Trees That Count.