1. Start Work on These Immediately!
Don’t delay getting paperwork together. You must have paperwork for every person on your application. Since there are always exceptions, check out the official website or talk to the embassy or consulate office.
Bring (do not mail) all records with you when you come to your interview. Make certain that you have everything and that it follows the rules exactly! If you are refused a DV based on a small error, odds are you will never get another chance.