Modifies provisions for senior housing subsidies

HB 577 modifies Missouri's senior housing subsidy program to require owners of eligible senior rental housing projects to submit plans demonstrating how they will maintain affordability for specific tenant groups. The bill mandates that owners seeking additional subsidies must create plans showing how they will keep 40% of units affordable for low-income seniors and 60% for moderate-income seniors, with rent limits tied to income thresholds. It establishes new requirements for property owners to secure state incentives like tax credits or grants to support these affordability measures. The law aims to preserve long-term affordability by restricting rent increases and requiring maintenance funding for subsidized housing units.