How could I find out if before passing away, my grandfather petitioned for my mom?

I am surprised that attorney did not mention having your Mom file a FOIA request with CIS to obtain all of her immigration records. However, if...

Can my employer sponsor me for a green card?

The only way you could get permanent residence through employment is if someone or an employer filed a petition for you or a parent before April...

You will just have to wait and see how CIS reacts. Hopefully, they will issue an RFE which you can respond to with the I-20. And that assumes the...

Out-of-status vs unlawful presence related to 3-year ban

You do not accrue unlawful presence until the I-94 expires. But you went out of status when your employment terminated.

First, why don't you ask your attorney? Second, you are incorrect about the cap gap extension. It continues until a decision is made on your H-1.

Sponsor?

You can use as many as you like but each one you add also adds all of that sponsor's dependents to the calculation.

L1 visa: Allowed to work during adjustment of status (marriage)?

Assuming your wife is a US citizen, yes, this will work and your L-1 status authorizes you to work as long as it is valid. And you will receive...

Permanent residency through my daughter ?

You need to see a Board Certified immigration attorney since under these facts there is no way to legalize your status. But there may be additional...

New revised I-485 form questions

For ethical reasons and malpractice insurance requirements, lawyers should not answer individual questions on forms. Misdemeanors are crimes. ...

About my naturalization interview

You will be fine. Those are not valid reasons to deny an N-400.