The person assuming the lease bears the bulk of the costs. Still, these fees will often be less than a standard down payment. One shopper found a large SUV with 19,000 miles and 19 months left on the lease for only $322 per month. It cost him a total of about $750 to assume ownership of the car, Canceling a car purchase contract is necessary in some circumstances. For example, if a dealership promises to deliver a certain vehicle to you by a certain date, it may be necessary to cancel the contract if the dealership fails to deliver. In other cases, a contract may need to be canceled because financing cannot