Translation of margen

Since it had no wind and no turbulences at all we landed right on time. I had an entire afternoon until my connection to Havana and decided to spend it in the duty free shops, or in the restaurants.
Do you need a company that makes a complete Due Diligence or only the Technical claims and IP Due Diligence? I can give you the reference of a prominent law firm in the field of patents and copyrights.
The American (his name was Jeffrey) meant that this is the hour where usually the price of goods went down as the sellers were under pressure and did not want to return with the product.