Individuality and Solidarity in Relational Property Law examines how the law addresses non-conventional categories of adult unions, including unmarried cohabitants, living apart together, non-conjugal and polyamorous arrangements. It explains how property relations between partners are regulated and considers whether current legal frameworks, which have traditionally focused on marriage, can adequately address modern nuances. Key Features: Analyses the current legal standing of a varied range of intimate adult unions Outlines an implementable legal framework which would enable a more equitable relational property law Illustrates the regulation of private solidarity between partners in conjunction with public privileges, such as hospital visitation rights and tax benefits Draws on relevant regulations and sources from a wide range of jurisdictions, including proposals from various law commissions, to form a rich comparative foundation This comprehensive book is an important reference for academics and scholars of international family law, comparative law and European law. The practical recommendations and frameworks are also beneficial for legal professionals and practitioners of private international law and family property law.