Montana Mont. LBF 4. DEBTOR'S NOTICE of AMENDMENT TO SCHEDULES [MONT. LB 1009-1(a)] is a form that a debtor must file with the court to amend their bankruptcy schedules. This form is typically used when a debtor needs to update information or add additional creditors to their bankruptcy schedules. The debtor must also include a copy of the amended schedules with the form. There are two different types of Montana Mont. LBF 4. DEBTOR'S NOTICE of AMENDMENT TO SCHEDULES [MONT. LB 1009-1(a)]: the “Individual Debtor” version and the “Joint Debtor” version.