No, their race is not important. What is important is that they can show they have a real relationship, that they're not getting married just so she can get a green card. They should be prepared with as many documents as possible to show that their relationship is real -- photos together, letters or emails they might have sent each other, plane tickets, etc. from any trips they have taken together.
The information offered is general in nature and not meant to be relied upon as legal advice. No client-attorney relationship is created through this information. Please consult an attorney prior to making legal decisions.
No, it's more important they work with an attorney. My firm handles marriage claims in NY.
Law Offices of Nicklaus Misiti
212 537 4407
Legal disclaimer: The statement above is general in nature, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship.