Thousands of Ontarians live in affordable housing units provided to them by non-profit organizations but which are owned by private sector landlords. The nature of the legal relationship between these three parties is unsettled: a few cases have addressed it but there has been no consistency in the decisions. In large measure, the parties have worked around the lack of clarity in the law without the assistance of the Landlord and Tenant Board (the LTB). The nature of the relationship, however, has come to a head in a couple of cases now before the LTB, both involving Toronto based providers of supportive housing to tenants with mental health disabilities.