Modifies provisions for senior housing subsidies

HB 2491 revises Missouri's rules for senior rental housing subsidies by replacing outdated definitions and creating new income-based categories. It directly affects senior housing projects (buildings with 4+ units built/rehabbed under federal programs and restricted to seniors) and their tenants, particularly those classified as "low income," "moderate income," or "middle income senior" based on HUD income thresholds. Key provisions define terms like "affordable rent" (capped at 30% of tenant income) and require subsidies to "expand affordability" for low-income seniors. The bill updates how the Missouri Housing Development Commission administers these subsidies, ensuring they align with federal housing standards.