The purpose of this research was trifold. First, it was an attempt to gain an understanding of the experiences of fourteen unaccompanied, homeless youth between the ages of 18 and 24, living in the Twin Cities metro area, who have utilized services at two or more of the six grantee organizations. The second purpose was to understand how the shared principles of these organizations have been implemented in practice. The third purpose was to explore the extent to which implementation of these principles helps lead to healthy youth development from the perspective of the youth. This study was conducted as part of The Otto Bremer Foundation (OBF) Support for Homeless Youth and is a component of a utilization-focused developmental evaluation. The researcher employed a multiple case study approach. Qualitative data were generated from interviews with the youths themselves, street workers, agency staff, and Foundation staff. Fourteen individual case studies were written, and a cross-case analysis was conducted. The analysis provides insight into how the principles are enacted, as well as how they support a young person's healthy trajectory. This study found that all nine principles were evident in case stories, albeit some more than others. All principles interacted and overlapped, but each added something unique to the organizations' approach to working with youth. Implications for practice, policy, and funding are discussed. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]