Do swashbuckler rogues get to add their dexterity modifier to offhand weapon attacks while two weapon fighting?

@Hedgeson991Do swashbuckler rogues get to add their dexterity modifier to offhand weapon attacks while two weapon fighting? I'm curious, what feature in the Swashbuckler is prompting you to ask about two-weapon fighting?

— Jeremy Crawford (@JeremyECrawford) October 26, 2016

@Hedgeson991 The sidebar provides tactical advice. That is all.

— Jeremy Crawford (@JeremyECrawford) October 26, 2016