Will I need to leave the country if I change employers on an O1 Visa

I agree with mycolleague.

Do I need to worried

I agree with my colleagues.

I am on H1B but the employer may revoke it. Once it is revoked, can I use remaining OPT? Or how soon do I need to leave the US?

Yes, I agree with my colleagues. You could apply to change your status to a B1/B2 while you are looking for a new job.

Selected as the best answer

How long H1B holder can work outside of USA?

I agree with Mr. Moore. You don't need a visa to work for your company in your native country.

Need help regarding H1B Visa 221(g) White Form with Additional Administrative Processing in Hyderabad Consulate , India

You should speak with an immigration attorney.

H-1B transfer: does the new employer need to prove he interviewed enough US citizens that don't match the requirements ?

No, the employer is not required.

I agree with my colleagues, there is nothing you can do to speed up the background check.

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Query regarding Green Card. error on my first name! Need advice...

I agree with my colleague.

What rights does my sons dad have?

I agree with my colleague. Your son's dad could file a restraining order, but whether he is successful or not depends on the evidence submitted.

Help with a Parenting plan!

I agree with my colleague.