Article L143-15 of the French Commercial code
The successful bidder is obliged to take the equipment and goods existing at the time of taking possession, at the prices set by an amicable or judicial expertise, contradictorily between the outbid buyer, his seller and the successful bidder. It is obliged, over and above its auction price, to reimburse the dispossessed purchaser for the costs and fair costs of its contract, those of notifications, those of registration and advertising…