Note that the deposit on the land is 10% of the purchase price paid six weeks after the signing of the sales contract. This may be replaced by a bank guarantee issued by a Dutch bank. One of our lawyers found that in theory, the sale of land can be carried out: the terms of the contract should not be presented vaguely, incompletely or incorrectly. In other words, there should be an agreement on the parties, the obligations of each party, the price to be paid and the object of the contract. The conditions between the aunt and the nephew are very clear; The aunt lends the nephew $200 to buy a new tire (and nothing else) on the condition that he returns the $200 to her at some point (for example.B. if he receives his next paycheck). 3.