This chapter explores the socio-ethical opportunities and dilemmas experienced by a Syrian peer researcher, Alaa, who was invited to join a European research collaborative to explore the mental health–promoting role of school-based interventions for newly arrived young migrants and refugees in Denmark. By highlighting the different roles Alaa took in this process – as a fellow-Syrian, a ‘sister’ and a researcher – we stress the importance of instigating dialogue about these different positions, and how they were negotiated, for socio-ethical research practice.