Can I switch from EB2 to EB1 with previous employer ?

While a lot more factual detail would be necessary to assess the situation accurately, the fact pattern you describe indicates that even four years...

Is a spouse e-2 visa invalid if the main e-2 sponsor leaves the role tied to the visa?

Yes, it would. Your wife's E-2 status as a spouse depends on you still being employed in the US in E-2 status and on still being married to you....

Can a permenant resident apply for his parents to get a green card?

No, there is no immigrant visa category for that: you are not eligible to sponsor your parents until you become a naturalized US citizen.

Can I leave the US with my asylum based green card ?

Yes, you can. However, prudence dictates that it would be unwise in those circumstances to travel to a country adjacent to your home country that...

Yes it is worth applying. Answer the question about being confined to a mental institution honestly, and give the brief explanation you gave above....

Working for my family business in Ireland whilst on a H1B?

Serving as a Director for your family business in Ireland is not US employment. Working while you are in the US for a foreign business & getting...

Can I be deported because as a citizen (8 years) I voluntary change my birthdate? Thank you

If you intentionally misrepresented your date of birth during any part of your immigration process in the US, then you will certainly need counsel...

Is the USCIS system to notify change of address reliable? If I move, can that delay the process of my application? I

The online AR-11 at uscis.gov works fine, IF you complete it correctly, which means including the full old address, with apartment number &...

Are we ok if we present these documents and fill out another form to correct certain mistake on earlier form?

You will need to meet with an attorney with all your documents: in private, in a confidential, non-public setting so they can review all of your...

Will going from H1-B back to H4 EAD require reapplication of new EAD?

You would have to reapply for a new H-4 EAD, and that may be going away soon, as the Administration has expressed an intent to roll back or do away...