Also note that you can’t double deposit in the US so you can’t enroll at two schools simultaneously. As noted if you give up school one because you don’t like the housing, you likely won’t have a school two offer still in the table. And if you did, housing would likely be worse.
I saw your other thread. If you want to live off campus or require a single, there are plenty of schools that fit those criteria. Just do you due diligence now before applying.