Will it be OK to pay the DV fee before receiving my 2NL from KCC?If your CN is current for December, the you should go ahead and make the DV payment now. You want to give yourself enough time to get back the payment receipt to enable you include it with your AOS package.
Also, is it mandatory for us to wait for DV fee payment receipt before submitting our I-485 package? Can we sent the DV payment together with I-485 package beginning of December?