The title of this monograph highlights its focus on Albanian and Aromanian varieties, and on the empirical domains of nominal inflection, Case and agreement, complementation. The reason why we came to investigate these languages has to do both with their status of relatively little studied languages and with the availability of informants; microvariation data in turn facilitate investigations into domains of syntax closer to the externalization interface. All of this is useful to understand the external circumstances which shaped the monograph; the sources of several of the present chapters in occasional or hard to access publications are dutifully aknowledged at the end of this introduction. Contents:Nominal inflections, person and case and their syntactic projection; Lkrs, possessors and agreement in the DP; Complementation: Particles, Complementizers, Prepositions; Linguistic Contact.