Derek Moran
Agreement not to assert defence against assignee
14. (1) An agreement by a debtor not to assert against an assignee any claim or defence that the debtor has against the debtor�s seller or lessor is enforceable by the assignee who takes the assignment for value, in good faith and without notice, except as to such defences as may be asserted against a holder in due course of a NEGOTIABLE INSTRUMENT under the Bills of Exchange Act (Canada). R.S.O. 1990, c. P.10, s. 14 (1).
http://www.e-laws.gov.on.ca/html/statutes/english/elaws_statutes_90p10_e.htm