Section 73 — Canada Business Corporations Act: Right to requisites for registration

Unless otherwise agreed, a transferor shall on demand supply a purchaser with proof of authority to transfer or with any other requisite that is necessary to obtain registration of the transfer of a security, but if the transfer is not for value a transferor need not do so unless the purchaser pays the reasonable and necessary costs of the proof and transfer. If the transferor fails to comply with a demand under subsection (1) within a reasonable time, the purchaser may reject or rescind the transfer.