You didn't mention the immigration status of the person from Canada. I'll assume H-1B, similar as you. Yes, this H-4/EAD option is...

Is it legal to stay in US and continue my masters without valid I-94 while my I-539 is pending?

I agree with Mr. Shusterman, yes, this can work.

Yes, this could have a negative impact. I'm going to assume that you needed a joint sponsor for the I-864. I suggest that you get a loan from...

Unlawful presence?

You will probably have a decision by January. What kind of evidence/reason did you give in your cover letter?

My older son “Not Resident Can’t go back to his Country because Covid19 - Airport still close - Tourist Visa expire?

I agree that $1,500 is a lot for a consultation. They tend to be substantially less. Based on your facts, the most your son can do is request...

Should I file under EB-3 or EB-2?

This question is too important to you for it to be answered on this general immigration blog. The specifics of the job description need, and...

Where is the lawyer that did the PERM/I-140? He/she should be requesting the correction ... not you, the employee.

Can I be eligible for a green card by being a moderately-successful published author?

Moderately-successful? No Keep publishing, get reviewed, get in highly respected scholarly/professional publications.

Will I have an issue having a pending H1B transfer petition and having another concurrent H1B filed?

This might work. But, because I suspect that you took the risky-route of starting at the new company with nothing more than a filing receipt, you...

Do I need to maintain my current status once I applied for the Adjustment of Status?

It is best to continue as a full-time student and NOT to use the advance parole ... too many things with immigration are uncertain and if the AOS...