I am French and about to marry a US citizen. How many days after you married at the county clerk do you have to do a ceremony?

You have been misinformed, there is no requirement for a ceremony.

I got married and came to US in H4 visa,since I was working in India I want to work in US.kindly suggest me the process.

Check if you qualify for an H1b or other employment based visa.

Is it possible to apply for temporary protection status, work authorization and advanced parole all in one fee(pack)?

Check the instructions for TPS. You should be able to pay for all three applications with one check.

Immigration: Does a DUI render me inadmissible into the USA?

Generally it does not.

I would like to get a legal separation from my husband who just received his green card earlier this year, can it be revoked?

Very unlikely that it would have any immigration consequences.

Should I reapply or reopen?

Reapply. Reopening is for submitting new, previously unavailable evidence.

What action can I take against the company?

Probably nothing. Employment is generally "at will" in most states.

I'm on L2B visa expiring in JUL 2013, but I-94 is valid till Dec 2015. If I apply for an EAD, what will be the expiry date on it

One year from the approval date.

Can my mother file for me?

She can file for you. You cannot get work authorization, nor any change or extension of status until the visa is approved and available.

Me and my spouse have been friends for 2years and 8months.was it advisable to send in application on thesame day of marriage

Yes, it's fine.

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