An Act relating to optional municipal property tax exemptions for real property owned and occupied by volunteer certified or licensed providers of fire fighting, emergency medical, mobile intensive care paramedic services, or hazardous materials response services; relating to optional municipal property tax exemptions for certain long-term rental units, certain mobile home parks, real property rented to low-income families, real property owned and occupied as a permanent place of abode, and real property owned by first-time homebuyers; and relating to municipal tax refunds.