Includes methodology, literature review, legal analysis, experiences and rights to land of women in de facto unions in Rwanda, root causes of de facto unions, the costs of illegitimacy, recommendations for strengthening the rights of women in de facto unions. Until policy and law protect the rights of women in de facto unions and people accept women in de facto unions as legitimate wives and contributors to household prosperity, they will continue to be chased away by their husbands or families-in-law, and endure the resulting negative economic, health, and social consequences.