This volume contains a selection of nineteen peer-reviewed papers from the 42nd annual Linguistic Symposium on Romance Languages (LSRL) held at Southern Utah University in Cedar City, Utah, in 2012. The contributions cover a wide range of current topics in the areas of phonetics, phonology, syntax, interfaces, and diachronic Romance linguistics, with an emphasis on experimental approaches, in connection to L1 and L2 acquisition, code-switching and psycholinguistics. Among the languages and varieties of Romance analyzed are French (Old, Modern, and Norman), Portuguese (Brazilian and Classical), and Spanish (Modern and Judeo-Spanish), but also Italo-Romance, Latin, and Romanian. In a comparative tradition, the discussions extend to languages outside Romance, such as dialects of Arabic, Germanic, and Palenquero creole. This collection of papers at the forefront of research contributes to our understanding of Romance languages, and to the influence of Romance linguistics, and will be of interest to scholars in Romance and general linguistics.