About Us

Prior to joining Covenant House International in February 2023, Bill served as the CEO of Covenant House California since 2014, leading the site to quadruple in size in those eight years. Bill’s passion for working with youth came from his parents, who have been foster parents for over 30 years and have adopted 8 of his 11 siblings through the child welfare system.

Bill began his career doing street outreach, residential care, and therapy in Chicago. He subsequently spent 13 years with the Los Angeles County Department of Child and Family Services, where he helped reduce the number of children in out-of-home care by close to 75% through an emphasis on risk mitigation, family and community support, and faith-based engagement. In 2010, Bill became the executive director at Olive Crest’s Southern California operations overseeing the agency’s foster care, adoption, group home, transitional living, mental health services, and family support operations.

Bill has a bachelor's in business administration and finance from Taylor University and a master's of social work from Loyola University in Chicago. Bill lives in California with his wife and two children and he is an avid Philadelphia sports fan.

Carlette Mack started her career at Covenant House Alaska as an intern 25 years ago. She is a second-generation Covenant House employee; her mother worked at Covenant House Alaska as a case manager for 13 years. Carlette's passion and dedication for serving youth led her to positions such as Rights of Passage program coordinator, chief operating officer, and, at Covenant House Washington, director of external affairs. In 2017, Carlette served as interim executive director of Covenant House Illinois, helping to establish Covenant House’s then newest site, in Chicago.

Carlette is a trained clinical therapist primarily focused on therapy with children and teens. She received her bachelor’s degree in psychology and her master’s in counseling psychology, both, from Alaska Pacific University. Carlette is recognized for innovative program development and implementation, strategic planning, collaboration with local partners, and for her management and leadership skills. She has a strong sense of integrity and a passion for ensuring the well-being and quality of life of young people experiencing homelessness.

Carolina Escobar Sarti, Ph.D., has been the national director of Covenant House Guatemala since 2010 and is devoted to the children and youth in our care there. Carolina is one of Guatemala’s most recognized poets, authors, and national newspaper columnists and she writes regularly on human rights issues. Carolina has a doctorate in sociology and political science from the University of Salamanca, Spain, and a master’s in Hispano-American literature from Rafael Landivar University in Guatemala, as well as degrees and diplomas in psychopedagogy, education, and research. She teaches at the university level and is engaged in social research. Guatemala’s president named Carolina the country’s ambassador for peace in 2011.

In 2019, Carolina received the Olof Palme Medallion from the Olof Palme International Foundation in Barcelona, Spain. The medal is bestowed in recognition of those who have fostered Olof Palme's legacy to the world: the defense of human rights, commitment to peace, conflict resolution, and sustainable development.