Documents need from Joint sponsor

[myimmhelp 1]

My wife is a joint sponsor on my application for my mother.

I have the following documents from her ... Please advice if I am missing any thing.

1-2 Proves she is a US Citizen

1. Attested copy of US Naturalization certificate

2.Attested copy of US Passport

3-5 to prove financial stability.

3. Salary slip for last 6 months and one slip from 2010 and 2011.

4. Employment letter

5. Tax returns for last three years ( Have been filling it jointly)

6. W2 for last three years.

Proof of Relationship with Sponsor

7 ,. Marriage certificate

Any thing missing ?

Edited July 12, 2013 by myimmhelp

[myimmhelp 1]

any help................