不要把话说死，很多州都可以用security deposit 来抵未付的租金。

Although state laws vary on the details, your landlord can almost always withhold all or part of the deposit to pay for:?

》 unpaid rent
》 repairing damage to the premises (except for “ordinary wear and tear”) that you or a guest caused。
》 cleaning necessary to restore the rental unit to its condition at the beginning of the tenancy (over and above “ordinary wear and    tear”), and
》 replacing rental unit property you’ve taken.

www.nolo.com/legal-encyclopedia/free-books/renters-rights-book/chapter4-2.html