Students are required to live on campus for the first 2 years, yeah, but I know several people who have gotten exemptions just by proving they genuinely cannot afford on campus housing or by having some sort of letter from a parent (for example, a kid in one my classes is a current sophomore living off campus- he had his dad write a letter saying that their family was moving to Boston area and wanted their son to live at home with them to focus on studies, even though that was all made-up, and that was approved).
Singles are abundant within IV, for Honors freshman, and harder to get otherwise.