Legal Question in Banking Law in Pennsylvania

You don't. It sounds to me that if there was a small business loan, the loan went into default. You were either the primary borrower or a guarantor. The lender or its assignee sued and recovered a judgment. With the judgment, the lender could seek to collect on assets. Judgments can be executed on personal property (anything other than land is considered personal property) for 20 years. The only way to prevent levy of a bank account is to resolve the judgment in some way via bankruptcy, settlement or payment in full. Once the judgment has been satisfied via payment or discharged in bankruptcy, then you will not have to worry any more.