This report provides a comprehensive analysis of joint tenancy laws and their severance in Singapore. It compares joint tenancy with tenancy in common, highlighting their differences and implications under the Transfer of Property Act (UK), 1882. The report examines the four unities of joint tenancy (time, title, interest, possession) and the four ways a joint tenancy can be severed (alienation, mutual agreement, court order, unilateral declaration). It also discusses the prevalence of tenancy laws in Singapore, analyzing case laws and litigations, particularly focusing on the Neo Boh Tan v Ng Kim Whatt case. The report concludes by proposing significant reforms to the severance of joint tenancy laws in Singapore, addressing issues such as the four unities rule, severance methods, the difficulty of secret severance, and the effective time of severance. The proposed reforms aim to modernize the laws, reduce discrepancies between joint tenancy and tenancy-in-common, and make property ownership more adaptable to modern needs.