Now you can set fonts/typeface directly in InDesign while creating PDF forms. This feature is now available in latest InDesign CC version. Please upgrade to the latest release.
Abhinav AgarwalDana Baedke commented
Can't believe more progress has not been made with forms in CC, disappointed after finally deciding to commit to the subscription model for the rest of my living days (or at least my working days - haha). Creating a fillable form should be an easy no brainer!