Can my spouse enter USA on H4, apply for EAD w/ up to date I-94 and leave while it's being sent to USCIS in the mail?

Yes, but she needs to complete a biometrics interview in the US as well and its 2-3 weeks after filing the I-765. So she either stays for that, or...

Can i apply for Green card while in the US? and can i file for an extension of stay while waiting for an approval?

You don't need to worry about an extension, your husband has to file a petition for your benefit and you need to file the adjustment of status. ...

Should I enter using B2 status during F1-OPT?

Reenter using the F1 and if your previous entry in B2 is questioned, explain it. You were not entering to start your job yet, only a brief visit,...

Your friend can provide a letter saying you are friends and he will provide food and shelter, but there is no formal sponsorship by your friend for...

How can I get a 'prospective student' stamped on b2 visa?

You have to apply for a B2 visa and that is taking anywhere from 1-9 days in Italy right now. Do it ahead of time and don't assume it will be...

How will you be admissible to canada without committing any crime?

We don't know, we are US immigration lawyers, either ask a Canadian immigration lawyer or the Canadian embassy that denied the visa.

How 16 y.o American citizen can bring his mother from Poland to live with Him?

You could try to obtain a visitor visa to travel with him, but you would need to prove you are returning to Poland at the end of the visit. This...

H1b security check been pending from sep2016. is filling a new h1b petition in consular processing solve the issue?

What does your current attorney say about this? why would a cable petition be different then your change of employer petition?

Can I file I 130 from to my wife she's in U.S. but l last all my paper I only have my U.S. passport can I file I 130 with my pa?

If you mean as a way of proving your US Citizenship, yes you can. Obviously you need to show its a good faith marriage as well. See the forms...

II still have my shengen visa but I still have two months and I over stayed I stayed more than three months

This is a duplicate posting, see previous answer....