My friend who is a realtor told me about this. Law enforcement officers, pre-Kindergarten through 12th grade teachers and firefighters/emergency medical technicians can contribute to community revitalization while becoming homeowners through HUD's Good Neighbor Next Door Sales Program. HUD offers a substantial incentive in the form of a discount of 50% from the list price of the home. In return you must commit to live in the property for 36 months as your sole residence.

The listings are only available through this HUD program.

More details here: HUD Good Neighbor Next Door Program