The value of community assessments depends on the researchers’ ability to reach a diverse and representative sample of participants. This process is particularly challenging when assessing the health and well-being of vulnerable populations that are reticent to participate in research because of demographic and sociopolitical factors. One such group is Latinxs (the gender-neutral version of Latinos or Latinas) of mixed immigration status who live in low-income, socially and geographically isolated enclaves in the Southeast. Framed by community-based participatory research and social marketing theories, this study describes practical strategies for health researchers, practitioners, and advocates seeking to engage and build trusting relationship within U.S. Latinx communities. First, identify and leverage points of entry to different segments of the communities of interest by engaging meaningful gatekeepers from different sections of the population and searching for places where potential participants gather. Second, reduce the burden of assessments by using incentives and creating intentional reciprocity. Third, establish critical, long-lasting trust with community members, leaders, and allies by adapting data collection procedures, ensuring confidentiality, engaging bilingual facilitators, and most important, being present with and for the community. Finally, presenting the findings back to the community can increase the ownership of the process.