C-73.1, r. 2 - By-law of the Association des courtiers et agents immobiliers du Québec

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118. Any withdrawal from a general or special trust account shall be made by cheque or other bill of exchange or by transfer slip bearing the number attributed to that specific transaction. A certificate holder referred to in section 108 shall, for professional inspection purposes, keep on file a duplicate of such cheques, bills of exchange and transfer slips, as well as the original cheques and bills of exchange cashed.
O.C. 1865-93, s. 118.