This chapter explores migrant advocacy in Lithuania during the border crisis with Belarus beginning in 2021, focusing on how civil society actors navigated a repressive and hostile environment. Using interviews, case studies, and theoretical frameworks such as moral boundary-drawing, soft repression, and securitisation, it examines the criminalisation of advocates, particularly grassroots groups like Sienos Grupė. The chapter contrasts state-aligned international organisations with informal movements, highlighting how political pressure, limited access, and public hostility shaped their effectiveness. It analyses how solidarity networks and transnational collaborations enabled strategic adaptation under surveillance. The shift from moral to legal advocacy is discussed in the light of declining public empathy and growing legal constraints. Overall, the chapter contributes to debates on shrinking civil society space, showing how advocacy is both constrained and catalysed by repression, and how rights-based resistance persists amid nationalist backlash.