Engagement with the Canada Revenue Agency, the Department of Finance, and other applicable federal officials regarding the administration of GST self-supply rules as they apply to non-profit, covenant-restricted affordable rental housing. This includes CRA approaches to determining fair market value where permanent, successor-binding affordability covenants restrict rents, tenant eligibility, refinancing, transfers, and operations; audit, reassessment, objection, and settlement practices; and potential administrative guidance or regulatory clarification under the Excise Tax Act to ensure GST administration aligns with Parliaments intent to remove tax barriers to affordable rental housing supply. Engagement with Housing, Infrastructure and Communities Canada, Build Canada Homes, and other applicable federal officials regarding Catalysts potential participation in Build Canada Homes and the delivery of long-term affordable rental housing. This includes program design, delivery expectations, and alignment between federal housing supply objectives and the operational realities of non-profit affordable housing providers delivering covenant-restricted rental housing at scale. Engagement with Canada Mortgage and Housing Corporation, HICC, BCH, and other related federal officials regarding federal financing and underwriting practices as they affect non-profit affordable housing providers. This includes the treatment and recognition of social-purpose or mission-aligned capital as equity and its impact on the ability of non-profit organizations to stack capital efficiently and deliver long-term, covenant-restricted affordable rental housing.