The purpose of this mixed-methods study is twofold: to examine the professional development and supervision of live-in and live-on housing and residence life professionals for crises response and management on colleges and universities. The literature review consisted of empirical research for crises, professional development and supervision. The study sample consisted of live-in and live-on housing and residence life professionals employed at colleges and universities across the United States. The researcher utilized a sequential explanatory mixed-methods design using a demographic survey, Synergistic Supervision Scale (SSS), for the first, quantitative phase, and a semi-structured interview format for the multiple case-study design for the qualitative phase of the study, to answer specific research questions. The results overall indicated that live-in and live-on housing and residence life professionals were prepared to manage crises. Based on the findings of the current study, the researcher presented implications for housing and residence life administrators and live-in and live-on housing and residence life professionals. [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.]