I was reading the instructions to fill FORM W-7, and I understood that she cannot apply for a ITIN. However, I just re-read it, and it seems that she can:
"Who Is Eligible To Complete This
Form
The following individuals are eligible to complete Form W-7.
1. Any individual who isn’t eligible to get an SSN but who
must furnish a taxpayer identification number for U.S. tax
purposes or to file a U.S. federal tax return must apply for an
ITIN on Form W-7. Examples include the following.
A dependent/spouse of a nonresident alien U.S. visa holder
who isn’t eligible for an SSN. See Pub. 519."
I will give it a try. I just need her ITIN to enroll her in my medical insurance policy, I hope it will work.
Any chance that you know any company that could help with the process?
