I sent email to nvc about my mistakes i aske if they will send my case to uscis again or not

If the application is already being processed by the NVC, they will note the correction on their end and will no longer send the file back to USCIS.

Is the US PERM Green Card I-140 application transferable to other employer in India?

The I-140 petition is not transferable to another US employer and most certainly, not to an employer in India.

For H1 extension beyond 6 years, should PERM be applied 365 days before date of application or 365 days before end of 6 years?

The PERM or the I-140 petition must be pending for at least 365 days prior to the requested H1B start date. Since the PERM has already been...

Hi, I got an RFE on client letter. But my end client may not give the letter.

With this request, USCIS is usually trying to determine if employer-employee relationship exists between the H1B petitioner and the beneficiary and...

I have the intention to apply for Tier2 visa form the US, during my 60 days grace period, I am asking if my stay is not legal ?

Staying in the US during the 60-day grace period will not hurt your legal status in the US.

It will be a permanent green card since she is applying as a derivative in an employment based petition.

I would like to know how a citizen of Mexico who has been working in the USA for several years can get a re-newed work visa?

If he has been out of status for over 6 months then he may be subject to certain bars from returning to the US the moment he leaves so it is best...

In the attached documents with form I751 do the tax returns copies needs to be signed by petitioner and beneficiary

It is preferable but not mandatory to submit signed copies of the tax returns.

Can I work for more than one employer using my OPT EAD?

You can work for more than one employer on your OPT EAD provided that they are in the field related to your studies.

H1B approved unused unstamped petition valid till Aug 2016. Can a new employer use this petition for filing cap-exempt petition?

A new H1B petition will have to be filed.