Does my husband, as a derivative, need to fill a separate DS-230 form?

Why didn't you include your son? Providing complete, accurate info is not optional when you register for DV. The omission of your son is most...

I am no Kolkata specialist, but, yes, consular processing is random, esp. for F-1s. The burden of proof is on you, so there's no guarantee of...

How to apply for F1 to H4 visa in states . What are the requirements?How long it takes?

Not sure I understand the question. What's your current status, F-1 or H-4? An H-4 can study in the US, so there's no reason to change to F-1...

Hello!!! Someone can explain me please

Context?

I Dont have another car as I 864 instruction .

Context, please? Are you the sponsor? The immigrant? If you live abroad, why are you filing I-864?

Denial of N-400 AND did not receive notice by mail

You shouldn't have to do a FOIA to get a decision in your own case. Maybe the notice went to the old address since there was a change of address...

An H-4 can make a passive investment in whatever he/she likes. But not be self-employed, even part-time.

After post decision activity how long should wait for visa in I 130?

Congratulations! These F2As are fast now, a few months. Look out for the next visa bulletin, which should be out shortly.

H1B transfer petition denied due to lack of client letter

Tough to answer this without reviewing the old filing, the denial and the new filing.

What i do if my green card is denied

How long have you been out of status? You may excludable if you leave the US. As stated above, you could wait until your wife naturalizes.