Re enter USA on previous employer’s valid visa. ?

Assuming you are referring to a valid and unexpired H1B visa, you can use it to enter. Make sure that you carry your current approval notice with you.

I have a question on EB1-A Extraordinary Ability Application for Green Card Eligibility

It sounds like a good start. You should consult an attorney in private so that you can get an actual evaluation of the strength of your case....

Can my parents wait in the USA until becoming a permanent resident?

It is generally recommended that you petition for your relatives through the US Consulate of their home country. You would file the I-130 in the US...

Yes, employer B will need to file a new PERM and then I-140 but you can use the priority date of your other approved I-140.

When a person on Green card marries a girl on a OPT visa what will be her status post marriage?

Getting married will not change her status. As her spouse you will be able to sponsor her for a green card application but it may take a couple of...

Can I transfer my h1b immediately to different employer after approval?

Your new employer will need to file the petition so their immigration counsel is in the best position to answer your questions. Congrats on the new...

Affidavit of support?

Yes, you should have your paystubs with you at the interview to show your income for the year. Yes, your husband’s income may be added to the...

Form I-134 is generally not required for an employment-based green card application. I strongly encourage you to consult with an attorney to avoid...

How soon can i apply for another visa after competing a short time J1?

B1/B2 is the visa category for purposes of attending a conference and visiting family. Whether you are able to secure a B1/B2 visa depends on may...

Do you know why they are taking so long?

Unfortunately there is no timeframe for USCIS to respond to your RFE response. You are doing all the right things by submitting inquiries and...