The book investigates adult second language (L2) acquisition of Greek by first language (L1) Russian speakers in the bi-dialectal setting of Cyprus. The participants all reside in Cyprus and came from former Soviet republics to Cyprus as young adults. The focus of the study is on the L2 acquisition of determiners, clitics and morphological agreement and relevant interpretable and uninterpretable features such as gender, person, number and case in both nominal and verbal domains. This explorative study of the real linguistic situation in Cyprus concerning adult second language/dialect acquisition tests theoretical hypotheses and provides insight into language development.