For more information on purchase and sale agreements, contact the Ontario Real Estate Association or visit the Canadian Real Estate Association website in crea.ca. Commercial Form500 Purchase and Sale Agreement for use in the Province of Ontario this Purchase and Sale Agreement is dated today. 20 buyers,.., agrees to (full legal name of all buyers) It is hayhoe homes` intention to post the latest purchase and sale agreement on its site. If you have any questions about the purchase and sale contract presented here, please contact a sales representative below one of. There are different types of offers to seal the agreement for the purchase and sale contract which are explained below….