“…The fields of languages for specific purposes (LSP) and community servicelearning (CSL) have gained considerable popularity in US higher education over the last twenty years (Long & Uscinski, 2012;Lafford, Abbott & Lear, 2014;Sánchez-López, Long & Lafford, 2017). Most of the research thus far has examined the potential impact of both disciplines on second language (L2) learners (e.g., Lafford, 2012;Lamboy & Thompson, 2012;Lear, 2012;Sánchez-López, 2013;Abbott, 2017;Salgado-Robles & Kirven, in press; just to name a few). Despite the growing interest in these areas, little is known about the effect of LSP and CSL on heritage language (HL) learners, particularly as it relates to language proficiency and HL pedagogy (e.g., Pino, 2001;Angelelli & Degueldre, 2002;Martínez, 2010;Martínez & Schwartz, 2012;King de Ramírez, 2017;Ruggiero, 2018;Martínez & San Martín, 2018).…”