I am an American citizen,my spouse i94 is expire can I file the i130 then file for adjustment after it approved

Based on the lack of information you have provided; in general, an immediate relative alien married to a USC can adjust status from inside the USA....

there is no specific requirement for envelope size when sending documents to the USCIS.

My sb1 visa was denied.now what can i do to have my green card back?

It is a privilege not a right to receive a visa. Why you were not granted that privilege can not be ascertained without additional information.

Ssn card

If the card was applied for twice in your name it should be discovered by the SSI and you will only be issued one SSN. However, to make sure you...

One can affect other case?

I suggest you speak to an experienced immigration attorney about your case evidence and circumstances.

Will a DWI conviction from 1991 show up on an employment background check?

It might but is is very likely. You can find out by getting a background check yourself.

Can my mom get a humanitarian visa because my dad is legally blind, has kidney failure, and my siblings living with him?

If you father is not here legally then your mother is not going to get a visa to care for him.

Where should an i212 wavier for non-immigrant be submitted?

I assume your previous visa was cancelled or expired. You submit the waiver with the visa application.

There are instructions with the form at USCIS.gov/I-94 or you can contact an immigration attorney to assist you. If you are near a law school the...

Can I speak to an attorney over the phone from the United Kingdom regarding falsely claiming citizenship ?

You can challenge the allegation. She may prevail in one of two ways; First that she made no such claim or second that she made such a claim by...