$arOrders = [];
//Берем все заказы
$arFilter = Array("PROPERTY_VAL_BY_CODE_UPLOAD_SUZ" => "N", "ID" => 86589);
$rsSales = CSaleOrder::GetList(array("DATE_INSERT" => "DESC"), $arFilter, false, false, array("*"));
while ($arSales = $rsSales->Fetch()) {
    $arOrders[$arSales["ID"]] = $arSales;
}

//берем все свойства заказов по их кодам
$orderProps = [];
$db_props = CSaleOrderPropsValue::GetList(
    array("DATE_INSERT" => "DESC"), ["ORDER_ID" => array_keys($arOrders)], false, false, array("*")
);
while ($arProps = $db_props->Fetch()) {
    $orderProps[$arProps["ID"]] = $arProps;
}