Recent reports have brought national attention to the prevalence of family homelessness1 and the need to coordinate across all levels of government to prevent and end family homelessness. In June 2011, the U.S. Department of Housing and Urban Development (HUD) released the 2010 Annual Homeless Assessment Report (AHAR), the sixth in a series of annual reports on the extent and nature of homelessness nationwide. The report documents a 29 percent increase in sheltered family homelessness between 2007 and 2010. Today, an estimated 168,000 families— 567,000 people—use an emergency shelter or a transitional housing program at some point during the year. The toll of homelessness on children living with their families is troubling. Homelessness can adversely affect children’s mental health and behavior, school attendance and educational achievement, cognitive and motor development, and general health.