A Novation Assignment Agreement is a legal contract that transfers the contractual obligations of one party (assignor) to a third party (assignee). This Standard Document contains provisions to incorporate an assumption of the delegated obligations and an optional novation into the assignment agreement.An assignment and assumption agreement transfers one party's rights and obligations to a third party. , a Texas corporation. Novation: What's the difference? This assignment and assumption agreement template includes a novation agreement and may be used to transfer an agreement from one party to another. AGREEMENT. 1. Assignment, Assumption, and Novation.