This study, funded as part of the Robert Wood Johnson Foundation’s Systems for Action research program, evaluates the feasibility of a multi-sector “Functional Zero” approach to reducing homelessness among fathers in Atlanta, with a focus on Black fathers who are disproportionately represented among homeless populations. The study builds from an existing multi-sector coalition of leaders from medical, social and public health sectors who have formed Fathers Matter ATL to address the unmet health and social needs of homeless fathers, including forms of structural racism that limit the availability of housing options for homeless men with dependent children.