I'm really not trying to nitpick here. However a translator is one who deals with the written word. A document is translated, a form can be translated.
An interpreter is one who deals with spoken communique's. Interpretation can be simultaneous and consecutive. Any monkey can play with words. A real interpreter or translator is multifaceted, highly educated, familiarized with legal jargon, medical and technical terminology and well read in the languages he or she is immersed in.
Like an attorney your choosing of an interpreter should not be taken lightly.

Fernando Martinez
Interpreter/Translator
Miami, FL