when the underlying status is denied any subsequent work permit or other benefits are cancelled immediately.

I am on J1 visa which has my status as single while I am separated. How does that affect my future greencard application ?

Well you may explain that you were separated and planning to get divorced.

COS from H1b to H4 visa

Why abroad, why not here in US if you are not inadmissible.

Hi, I'm on L2 dependent VISA and applied for i-539 extension

If your husband has an approved L-1A or B then the extension will approved based on the principal status. The RFE could take several months to...

What generally happens, USCIS will extend your green card for another year and will send you a notice. However, it may take several months for...

Can a french citizen that have 2 years in the u.s.a can legalize

Your question is not clear and non of us are able to provide a sensible answer to your question. You failed to include essential information. Best...

I'm an aupair, (j1 visa). I need help to end the program earlier because or serious breach of contract from the host family

Your best bet is to consult with an experience immigration attorney. Most of us do provide consultation via skype or telephone.

M1 expired and the I 20 still valid

I know you seem to have lots of questions and this Avvo forum is not the proper forum. I suggest that you contact an experience immigration lawyer...

I am on F1 visa amd I have applied for STEM extension. I am worried if I have exceeded my 90 day unemployement period.

How do yo figure out the 90 days? You are missing vita information. Consult with a lawyer.

How should I send the Birth certificate and Marriage certificate if I received a checklist letter from the NVC?

like my colleague so stated, you need to obtain a valid and authorized records. Try www.vitalrecords.com