One of the most serious potential debt lawsuit outcomes is a frozen bank account, but there are limitations to this tactic. Aldo Ottaviani - Italy/Getty Images Dealing with old, unpaid debt isn't just expensive; it can also be surprisingly frustrating. After all, when it comes to aging debt, the timelines for what can happen (and when) are confusing. Most borrowers assume, and rightfully so, that their unsecured debts simply age out and fall off their credit reports after seven years. That's generally true, at least in most cases. However, that 7-year rule can also lead to the assumption that at that point, those old debts lose their power to cause more financial harm. In reality, though, the rules surrounding aging debt are far more nuanced, and in some cases, the consequences can resurface long after the original account has gone delinquent.…