This study investigates the impact of the COVID-19 pandemic on heritage language maintenance and family language policies among multilingual families in Cyprus, a context characterized by diverse migrant communities and complex sociolinguistic dynamics. Grounded in Family Language Policy (FLP) and language socialization theories, it addresses the gap in understanding how external crises influence language transmission, emotional bonds, and resilience mechanisms. Using a qualitative narrative interpretative phenomenological analysis (NIPA), semi-structured interviews were conducted with 20 young adult immigrants from various linguistic backgrounds, including Russian, Georgian, Arabic, and others. Thematic analysis revealed key themes: disruptions to family and social bonds, challenges in heritage language transmission, shifts toward dominant languages and code-switching, societal perceptions, and community resilience. Findings indicate that pandemic-related restrictions contributed to perceived heritage language attrition and reduced intergenerational transmission, while digital communication and community support fostered resilience. The study highlights the importance of adaptable family language policies and digital tools in safeguarding multilingual identities during crises. Contributing to FLP research, it emphasizes the role of community cohesion and technological adaptation in promoting language vitality under unprecedented conditions, offering insights applicable to multilingual contexts globally.