My research objective is to make meaningful contributions to the fields of language acquisition and linguistics by addressing theoretical questions regarding the nature of non-native grammar representation and language processing, and how such insights can inform pedagogy. To date, my research has largely focused on questions related to language transfer, the underlying representation of non-native language and acquisition of properties not present in the native language. Both single-authored and collaborative work conducted under these questions, across various linguistic properties, language pairings and instances of bilingualism, have contributed to the fields of second and third language acquisition, child bilingualism and heritage speakers. The aforementioned theoretical questions were also addressed in my dissertation, which examined native Farsi speaker’s convergence on Spanish. This project combined psycholinguistic methods that captured processing data via reaction time with traditional offline methods.