Is it legal to stay in US even after H1B extention deniel

No. Not after your H1B status expires.

Should I-140 cover letter be single or double spaced?

No preference for a cover letter....

Your felony conviction requires deeper scrutiny with the supervisor. Even though the crime occurred 16 years ago, USCIS has the discretion to go...

Can I travel on OPT before filing for change of status from F1 to H1-b?

You would be traveling at your own risk. If you look at your EAD card, it says there "Not valid for reentry." But I have known individuals who...

Still waitron for the Immigration Judge written decision

The docket is long and busy. Consult with your lawyer on this delay in decision.

Marrying someone on J1 visa status that does not have a return home condition.

The broad answer is yes, she can file and adjustment application with your I-130 petition and she can stay legally until it is adjudicated. The...

What can I do if my Adjustment of status has been denied due to my USC spouse withdrawing his petition?

You should seek the assistance of an immigration lawyer. Your case clearly has issues and needs an in-depth analysis not possible on this forum.

Can my employer revoke visa effective from date in past after I communicate him verbally about my intention to resign?

First, that sounds like a very vindictive act by your former employer. I do not think you have to worry because the approval to change employers...

How important it's having your immigration attorney with you at your green card through marriage interview

In my experience, when a client is nervous, having their immigration lawyer with them at the interview does lessen the tension and nerves.

As a UK citizen, how can I be soonest reunited with my wife and children?

Your wife can still file the papers for you from the U.S. and you can enter the U.S. via consular processing when the I-130 is approved and your...