This study examines the experiences of lesbian-parent families in Chile regarding the civil registry and the registration of their children, highlighting how heteronormative structures persist despite significant legislative advancements. Through semi-structured interviews with lesbian mothers, it explored how the policies and practices occurring at the civil registry affect their rights and legal recognition. The qualitative data analysis revealed significant barriers in the filiation processes due to outdated forms and lack of training among officials, reflecting a disconnect between progressive legislation and its practical implementation. The findings indicate that while there is growing social recognition of family diversity, lesbian-parent families face institutional discrimination, limiting their full participation in society. These barriers not only perpetuate occupational injustices but also negatively affect the emotional and social well-being of these families. This study underscores the need for legislative and administrative reforms to ensure effective inclusion and recognition of lesbian-parent families, recommending policies that update administrative processes to reflect the realities of all families adequately. The research highlights the importance of continuous education and awareness for civil registry workers, ensuring that existing laws are applied fairly and equitably.