This Assignment and Assumption Contract shall be binding upon and inure to the benefit of the parties' respective successors and assigns. This Assignment and Assumption Agreement shall be binding upon and inure to the benefit of the parties' respective successors and assigns.An assignment and assumption agreement is a contract that allows one of the parties to transfer their contractual rights and duties to another party. Need to assign your rights and duties under a contract? Learn more about the basics of an assignment and assumption agreement. This Agreement is made and entered into as of. The Assignor wishes to assign the Lease to the Assignee and the Assignee desires to assume the Lease from the Assignor.