1 and is described in particular as follows: 4.4.1 In the event that the Seller requests the Buyer in writing to pay the unpaid amount and the Buyer cannot make such payment in full within fifteen (15) days from the date of the Seller`s invitation, the Seller has the right to immediately terminate this Contract and all funds paid by the Buyer under this Contract are cancelled due to penalties and lump sum damages. In addition, in this case, the seller has the right to sell the unit to another person and the buyer has no right to oppose or oppose such a sale and/or to demand damages or compensation from the seller. The closing agreements and closing date are when all relevant documents are exchanged by the parties` lawyers and the sale is completed. The exact date and time when the offer is open (and irrevocable) are also indicated. It`s usually a few hours or a few days. If the offer to purchase the property is not accepted by the seller before that date, it becomes invalid. . . .