In general, U.S. immigration will scrutinize a marriage-based green card process more closely if the couple lives apart. If they are not living together, U.S. immigration may look more closely at whether it is a real and legitimate relationship.
Also, as a grad student who I assume is not working or making much money, it may be difficult to meet the affidavit of support requirement. The marriage-based green card process requires the U.S. citizen sponsor to show income/available funds to support the foreign national. If the U.S. citizen is not working, a joint sponsor may be needed.
You can find info on the process at:
http://www.familytousa.com/green-card-through-marriage-ad/
They may want to wait to file for the green card until they are living together or they understand the process a little better. At worst your friend should consider consulting with an immigration attorney to understand the green card process.
Regards,
Andrew M. Wilson, Esq.
Serotte Reich Wilson, LLP
www.srwlawyers.com
awilson@srwlawyers.com
Answered on Apr 02nd, 2012 at 6:51 PM