public PropertySaleInformation ToDomainModel()
 {
     return(new PropertySaleInformation(PurchasePrice,
                                        State,
                                        PropertyType,
                                        Buyers.Select(b =>
                                                      new PropertyBuyer(b.BuyerNumber, b.IntendedUse, b.FirstHomeBuyer, b.IsForeignBuyer, b.PurchaseFraction)).ToArray()
                                        ));
 }