Hi
I am on an H4 visa.
I want to apply for ITIN number along with my husbands's federal tax return.
I have filled the W7 form.
1) What documents are required to support the W7 form?
2) Also I changed the last name from maiden to married on my passport but it is still the same on my visa.
Will that be a problem when I apply for ITIN?
3) Lastly how long does it take to get the ITIN from IRS?