Researcher Anton Roberts of the Policy Evaluation and Researcher Unit (PERU) is proud to release this report in collaboration with Lifeshare. This detailed piece of work explores the role of complex need in frontline homelessness services - attempting to define the challenges faced, provide examples of best practice, and a host of recommendations for improved ways of working. This detailed service guide has been informed by Anton's co-productive doctoral research, which took place over a two-year period across provisions here in Manchester. The resource also draws heavily on the lived experience of the organisations staff, volunteers and service users. This resource would be of great use to any frontline workers/volunteers in the sector, as well as any frontline provision that works with vulnerable/marginalised groups. It is a reflection of the (at times) stark difficulties faced by third sector organisations, but also provides a series of realistic and practical solutions.