Amendment modified language relating to the prepayment of federally subsidized mortgages by: 1) extending the low-income use restrictions on affected properties for at least 10 years beyond the existing 40-year mortgage; 2) continuing the requirement that these properties be targeted to low and very low income residents; 3) specifying that the provisions in the bill should not preempt local zoning, rent control, or other housing laws; 4) extending to nonprofit housing groups a right of first refusal to purchase property if an owner opts to prepay the mortgage; 5) establishing financial incentives for owners to improve services for the elderly living in these properties; and 6) adding new sanctions against owners who allow their property to fall into disrepair.