Where does Leila meet Roman Shades in the novel, Whiskey Tango Foxtrot, and how does he help her?

Roman Shades is a contact member of Dear Diary, who first meets Leila in Dublin. Roman helps to situate Leila, contextualize important information for her, and to orient her to the truth of things. Roman later arranges to meet up with Leila, Leo, and Mark in Oregon, and helps to arrange the exposing of the setup of Leila’s father.