Currently, patron accounts cannot be deleted in batch if they have linked guarantees. My process for unlinking accounts at the moment is to edit each individual guarantee account, remove the guarantor with the checkbox and manually enter the guarantor firstname, surname, and relationship into the non-patron guarantor section. That frees up the guarantor account for deletion while maintaining pertinent information for the remaining guarantee account. It would save a lot of time if the conversion of patron guarantor to non-patron guarantor could be handled in a batch. It would be most handy if this were an addirional option in the batch patron deletion tool, but might also make sense as something the patron batch modification tool could do.