Section 58 — Canada Business Corporations Act: Completion or alteration

Where a security contains the signatures necessary for its issue or transfer but is incomplete in any other respect, any person may complete it by filling in the blanks in accordance with their authority; and notwithstanding that the blanks are incorrectly filled in, the security as completed is enforceable by a purchaser who took it for value and without notice of such incorrectness. A completed security that has been improperly altered, even if fraudulently altered, remains enforceable but only according to its original terms.