A Sales Agreement is a legally binding contract between a buyer and a seller to outline the terms of a transaction. A sales agreement is used to describe and track the exact details of quantity and cost of purchasing or selling goods, services, or real estate.An advertising agreement is a legal contract executed between a company hosting the advertising and a company providing the advertising. This business sale agreement template can be used as a binding document to govern the sale of a business to a new owner. Review multiple versions with different use cases depending on your needs. Click Here for Standard Service Agreement. Fill out our Classified Ad Agreement using the form below. Please allow up to three business days for your ad to be posted. Purchase agreements are legally binding contracts used to guide the transition of ownership in a business or the sale of its assets. This marketing agreement outlines services, payment terms, confidentiality requirements, intellectual property ownership, and dispute resolution.