Book excerpt: This book evaluates key commercial law aspects of the relevant law and legislation governing residential mortgage-backed securities (RMBSs) in Australia from a legal perspective. Within the context of a “public benefit test” framework, the book seeks to critically evaluate the impact and effectiveness of current law and regulation governing RMBSs. There is a dearth of both academic and practical literature on the legal and regulatory issues surrounding RMBSs in Australia. The book aims to make a contribution to the formulation of law and public policy by suggesting a number of reforms to the current law and practice surrounding RMBSs in Australia. In part, these suggested reforms will be based on the lessons learned from the experiences of overseas jurisdictions such as Canada, the U.K, and the United States.