Can the person suing my business freeze our bank account before this is resolved?

In the ordinary course of a business dispute, generally not before a judgment is actually entered against you. California law does provide for something called prejudgment attachment specifically for certain commercial claims, meaning a court order freezing assets before the case is fully resolved, but obtaining one requires the plaintiff to make a separate, formal court application demonstrating specific grounds, and this remedy isn't common at the claim sizes typical of limited civil business disputes.

Once an actual judgment has been entered against your business following the litigation, however, a bank levy targeting business accounts becomes a straightforward collection tool the winning party can use, without needing the kind of special showing required for prejudgment attachment. This distinction, between the relative protection you have before judgment versus the collection tools available afterward, is worth understanding as you weigh how urgently to respond to the underlying lawsuit itself.