In the probate process concerning a decedent's estate, the DE-121(MA) form is a critical component when a notice has been sent out as part of the duty to inform interested parties that a petition to administer an estate has been filed. This form acts as an attachment for the DE-121 and serves as proof that the required notices have been distributed by mail to all relevant individuals, such as heirs, beneficiaries, and other interested parties. Common triggers for the need to use the DE-121(MA) include: - Filing a Petition for Probate (form DE-111), which initiates the probate proceedings. This step typically requires notice to be given to all interested parties, prompting the need for the DE-121 and its attachment. - A court order mandating that notice is provided to specific parties regarding the administration of an estate. - The need to update the court on the status of proceedings, ensuring all necessary parties have been notified of ongoing actions. Before reaching the stage requiring DE-121(MA), one often encounters prerequisite tasks such as gathering the decedent's will, valuing the estate, and preparing a list of all interested individuals. These initial stages set the groundwork for the formal processes that follow, making documentation of service by mail a crucial step in maintaining clear and legal communication channels within the probate proceeding.