Hello. If the divorce is legal and recognized in their home country, the US will recognize it for immigration purposes. Thus, you can marry here in the US. There should not be any wait time to marry, however, you may need to verify that with your state when you fill out the marriage license. If you are interested in processing her immigration/green card, I would be happy to answer any of those questions as well. That can be complicated and need to discuss to clarify any of her specific issues. Feel free to email or call me anytime at: harun@ksvisalaw.com 858-874-0711.