THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (this "Agreement") is entered into as of the. This Assignment and Assumption Agreement ("this Agreement") is made and entered into as of.Once you go into a purchase and sale agreement with your seller you need an assignment agreement to assign that to your end buyer. An assignment and assumption agreement is a contract that allows one of the parties to transfer their contractual rights and duties to another party. This Standard Document contains provisions to incorporate an assumption of the delegated obligations and an optional novation into the assignment agreement. The Assignor wishes to assign the Lease to the Assignee and the Assignee desires to assume the Lease from the Assignor.