It must be clear, definite, complete and final. If the buyer accepts, then it is a contractual obligation ---Non-firm offer is a quotation subject to final confirmation and is not legally binding. The seller can withdraw it anytime before the buyer accepts it An example of making a firm offer and explanation. OHP9It must be clear,definite, complete and final. If the buyer accepts, then it is a contractual obligation. ---Non-firm offer is a quotation subject to final confirmation and is not legally binding. The seller can withdraw it anytime before the buyer accepts it. An example of making a firm offer and explanation.OHP9