THIS ASSIGNMENT OF REAL ESTATE CONTRACT ("Assignment") is entered into between Westmont Apartments Development Company, LLC, an Illinois limited liability. Real estate assignment contracts allow assignors to transfer rights under a purchase agreement to assignees.These contracts create opportunities for profit. Assignment contracts allow the transfer of purchasing rights to another buyer, offering the potential for profit with little upfront capital. A purchase contract assignment is between a holder (assignor) who transfers their interest in buying real estate to an assignee. The assignment contract gives the new buyer the right to close on the property per your original purchase agreement with seller. The purchase price is one of the most important provisions of any real estate sale contract. Apprising each tenant of such lease assignment and the sale of the Premises; (iv) a reasonable form of. A For Sale By Owner contract Illinois must include: 1. The Purchase Price, 2.