Public health obesity prevention experts have recently emphasized a policy systems and environmental change approach. Absent, however, are studies describing how practitioners transition from policy adoption to implementation. In the realm of food policy, financing programs to incentivize healthy food retail development in communities classified as “underserved” are underway at the local, state, and national levels. Implementing these policies requires a clear definition of eligibility for program applicants and policy administrators. This article outlines a methodology to establish eligibility for healthy food financing programs by describing the work of The Food Trust to coadminister programs in 3 distinct regions. To determine program eligibility, qualitative assessments of community fit are needed and national data sources must be locally verified. Our findings have broad implications for programs that assess need to allocate limited public/private financing resources.