The Eleventh Circuit has determined that Immigration Judges explicitly have the authority to grant waivers of inadmissibility in conjunction with U visas under section 212(d)(3) of the INA. In so doing, the Court joins the Seventh Circuit, and breaks with the Third Circuit and the Board of Immigration Appeals.
The full text of Meridor v. Attorney General can be found here:
http://media.ca11.uscourts.gov/opinions/pub/files/201514569.pdf