This document summarizes challenges and opportunities related to the management of European Structural and Investment Funds in Bulgaria. It discusses how Bulgaria addresses challenges through legislation and reviews lessons learned from the 2007-2013 programming period. It also examines challenges posed by recent Supreme Administrative Court practice and legal doctrine regarding the nature of relations between managing authorities and beneficiaries. The document analyzes debates around adopting a Management of ESI Funds Act to provide a unified framework and resolve issues like lack of predictability and fragmentation in rules.