This document discusses using motivational interviewing (MI) with families in problem gambling treatment. It describes MI as an approach to increase readiness for change based on the stages of change framework. The key aspects of MI spirit include partnership, acceptance, compassion, and evocation. When using MI with families, the goals are developing acceptance and compassion for each other, a strong therapeutic alliance, shared motivation for change, shared goals, and a common language for change. Family members may be in different stages of change, so it is important to avoid taking sides. MI can be used to engage reluctant family members by exploring pros and cons of their involvement and the potential impact on readiness to change. The stages of change in working with families are also