Integrating legal and economic frameworks is pivotal for fostering equity, addressing social disparities, and promoting justice in dynamic and interconnected societies. This chapter examines the critical interplay between these frameworks, emphasizing the role of legal structures in ensuring market efficiency, safeguarding property rights, and facilitating economic development. Drawing on theoretical perspectives, empirical evidence, and case studies, it explores how legal reforms such as land redistribution and progressive taxation address inequities and enhance social welfare. The analysis highlights the impact of regulatory mechanisms, including antitrust laws, in correcting market failures and fostering competition while acknowledging challenges like regulatory capture and the rapid evolution of digital economies. Social justice remains central to economic policy, with progressive taxation, social safety nets, and equitable education policies identified as key instruments for reducing inequalities and fostering social mobility. The study underscores the importance of adapting legal and economic frameworks to global integration and technological disruptions, emphasizing the need for innovation, international regulatory cooperation, and continuous policy refinement. By synthesizing diverse insights, this chapter comprehensively explains how a dynamic legal-economic synergy can promote sustainable development and inclusive growth in an increasingly complex world.