With respect to the purchase or sale of. Governmentbacked mortgage products, collateralized mortgages, debt obligations and certain high yield debt securities.How do I start my small claims case? What Is a Listing Agreement? A listing agreement is a legal document between a property owner (seller) and a licensed real estate broker. As part of the transaction, the Company entered into a Securities Purchase Agreement containing customary representations and warranties and undertakings. Registration for Lifelong Learning classes just got easier!