If your payoff amount is more than the offer for your car, the difference is called "negative equity." In some cases, the negative equity can be included in your financing when you buy a LaFontaine car. If not, we'll calculate the difference between your pay-off and our offer to you and you can pay LaFontaine directly. If the amount you owe is less than $250, we will accept a personal check. LaFontaine stores accept cashier's checks, certified checks, certified funds, cash, and debit cards. LaFontaine Car Buying Centers (locations that only buy cars) can accept cashier's checks, certified checks, and certified funds. Our written offers are good for seven days, giving you time to get any necessary funds to settle your transaction.