Despite over two decades of media and public policy attention, homelessness remains an enormous social problem in the United States, due in large part to the continual closings of institutions for people with mental illness, persistent poverty, a shortage of affordable housing, changes in welfare and mental health policy, and economic trends that favor the wealthy (Burt, Aron, Lee, & Valente, 2001; Evans & Forsyth, 2004; Haber & Toro, 2004; Lee & Schreck; Wolch & Li, 1997). Although women without custodial children and mothers taking care of young children represent two of the most rapidly growing subgroups of this population (Burt, Aron, Douglas, Lee & Valente, 2001; National Coalition for the Homeless, 2001; Urban Institute, 2000; U.S. Conference of Mayors, 1990, 2000), their needs remain relatively unexplored and largely unmet. Furthermore, these women are particularly vulnerable to multiple forms of interpersonal victimization, including sexual and physical assault at the hands of strangers, acquaintances, pimps, sex traffickers, and intimate partners on the street, in shelters, or in precarious housing situations.