He's identified as Asadullah Pardes, of Claymont, Delaware.
Authorities say his victims are refugees who were part of a nonprofit resettlement organization where Pardes worked.
He is accused of asking female clients on dates, making inappropriate comments, sending messages at inappropriate times, and showing up to homes unannounced.
Police say three separate victims were identified and there could be more.
Pardes was arrested on November 4 on several charges of rape, sexual extortion and other related offenses.
Anyone with information on this case is asked to call New Castle County police at (302)395-8129.