After a bankruptcy dismissal can a debtor after knowing and not disputing the debt turn around after the fact and collect without your knowledge?

Your question doesn't make sense the way it is stated.  A debtor is a party who files a bankruptcy case.  If the bankruptcy case is dismissed, that means that a discharge was not granted and therefore everything is the same as it was before the bankruptcy case was filed, and creditors (those who are owed money by the debtor) can seek to collect pursuant to applicable laws. Also, if the debtor is owed money by someone, he/she can collect on any debts that are owed to him/her through proper legal processes. Mark J. Markus, Attorney at Law Handling exclusively bankruptcy law cases in California since 1991. http://www.bklaw.com/ bankruptcy blog: http://www.bklaw.com/bankruptcy-blog/ Follow Me on Twitter:  @bklawr