PandaTip: Every marketing agreement is different, so make sure you add and subtract from the language in this Section and elsewhere as appropriate. Your Agreement should include information like: the contact information of both parties; the state whose laws will govern the agreement; the subject and dates of any previous negotiations; the agreed-upon terms, including payment; when the agreement goes into effect; and when it will end. With a Letter of Agreement in place, you'll know what to expect—and what's expected of you. You can use a Letter of Agreement to start negotiations, or you may want to use it instead of a more formal business contract. Either way, a Letter of Agreement sets out the terms of your working relationship. Rocket Lawyer provides information and software only. Rocket Lawyer is not a "lawyer referral service" and does not provide legal advice or participate in any legal representation. These statements highlight two aspects of the relationship between the two facets that help drive a business to growth and success. You shall not engage in any action that adversely affects any Company Marks. Company shall not engage in any action that adversely affects any of your Marks.