What docs need to be attached to i-864(Aff. of support) & 864a(contract between household member and sponsor)

the 864 requires personal tax returns that documents the ability to sponsor the household member

What documents should be attached to i-130(Petetion for Alien Relative), i-485(AOS) Should they be notarized or only a copy?

the I-485 need not be notarized, but the signature must be original.

1. Does i-683 need to be sent with the AOS appl. or at the time of interview 2. Which part of the I-130,i-485 refer to i-683

the i-683 is sent with the AOS. if not you will not receive an approval for the green card at the interview.

Immigration and h1b

Unlawful presence for the 3 and 10 year bars begins at the expiration of the i-94 unless the denial is before the i-94 expiration and states you...

Change of status from TN to E2 (self employed), which form? I-129 or I-539?

USCIS will grant you a change of status to E2 when the I-129 Petition and E supplement is filed. Should you need to travel outside the US an E-2...

I want to transfer to H4, can i get my h4 visa stamped in Tijuana Mexico

check the US Consul website. they may not allow first time stamping.

this should be acceptable passive income while on H1B.

How long does the process usually take? Is there a form the immigrant can fill out in order to travel while waiting for papers?

In Santa Clara we are taking 5-6 months. When filing the I-485 include the I-131 and I-765 for travel and work authorization.

I am in B1 and waiting for COS L1 . can my wife come on b2 visa

You wife may come on B2. But, not with the intention of COS to L2.

Does she need to apply for a new conditional green card again in order to enter the u.s.?

If you did not file the I-751 removal of condition. You would plan to apply for a new conditional green card.