Theoretical thesis.Bibliography: pages 349-386.Introduction -- Chapter One. Background and literature review -- Chapter Two. Statistics and social science research -- Chapter Three. Family property law -- Chapter Four. Family provision law -- Chapter Five. Couple relationships -- Chapter Six. Non-couple relationships -- Chapter Seven. Financial contracts -- Conclusion.People living in relationships outside of marriage are a significant and expanding demographic. Unlike many other jurisdictions in the Western world, Australia has for some time recognised certain non-marital cohabiting relationships on a presumptive basis for a number of different purposes. A relationship recognition regime that imposes relational consequences on those who ha...