We require personal guarantors for commercial debt to submit and sign a personal financial statement. That has a blurb about authorizing us to pull credit. Plus it's the "intent to lend/do business" rule that allows us to pull credit. We don't report guarantors to credit bureaus, even after they go south, I think we are too busy trying to work it out to remember that. However, I think there is a code to report a contingent liability on the CB if you really want to force the issue.
One more caveat, The personal fiancial statement should be addressed to your bank ( not have another banks name or logo on it) That makes it stronger if you take it into court and gives you that much more authority to pull the CB.
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