This study aimed to examine the reasoning among first line managers concerning the law from 2012 which gives older couples the right to continue living together even when only one of them needs special housing for service and care. We used a qualitative method with data collected through individual semi-structured interviews with six care managers in different municipalities in Sweden. The theoretical approach and interpretative framework for the analysis consisted of Michael Lipsky’s theory of street-level bureaucracy, Roine Johansson’s swedish adaption of this theory and Max Weber’s theory about social actions. We found that there was little variation in how the interviewed care managers used the law and the guidelines to support the work in the organisation rather than seeking individually based solutions for the elderly. The main conclusion of our study was that the law concerning the cohabitation guarantee for elderly has made little difference.