Undermatching continues to create barriers to access to post-secondary opportunities for low-income students from urban public high schools. According to Belasco and Trivette (2015), postsecondary undermatch occurs when students fail to enroll at a college or university that possesses a level of selectivity their academic credentials would permit them to attend. Undermatching happens across all income levels but is much higher among students from families with lower incomes and among first-generation college students (Tiboris, 2014). Undermatched students are less likely to graduate from college than those who are not undermatched, and undermatching is a problem that needs to be solved to help decrease educational inequality while improving college completion rates (Kang, 2020). Unfortunately, many educators often lack the resources needed to support and guide this population of students successfully. Access to quality information is an essential factor in bridging the information gap for these students. Undermatching, in the face of great options for financial aid, supports the idea that barriers of confidence, information, and distance stand in the way of a college education for low-income students, and many students lack solid college counseling and remain unaware of the broader world of higher education" (Hoxby & Turner, 2013). The research was guided by the following question: How do the resources and training school counselors receive affect the support and resources provided to low-income, first-generation college students during the college application process and their college selection? The research participants were current school counselors who worked with first-generation college-bound students and other K12 educators. The K12 educators who did not work directly with, nor have a direct impact on, first-generation college-bound students were invited to participate in the study to gather information about their understanding of resources provided to assist school counselors. This study revealed that with enhanced support and resources, school counselors can more effectively aid first-generation, low-income students during the college admission and application process. [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://www.proquest.com/en-US/products/dissertations/individuals.shtml.]