Background: It is widely recognized that the engagement of older adults with multimorbidity and their caregivers as partners in health care research is important and invaluable. Objectives: The objective of this study was to examine how researchers can best engage and support older adults with multimorbidity and informal friend or family caregivers of older adults with multimorbidity as research partners in health care research teams. Methods: The persona-scenario method was used for participants to create fictional stories.