Visitor visa for a cousin from Canada

[vijaysr]

The applicant is in canada (from India) on work permit. She wants to visit her cousin's wedding happening in the US. She has the wedding invitation, her financial records.

Does she need a special invitation letter from her cousin?
Does she need to have proof that he is actually her cousin?

[orion]

Invitation letter may help.
What proof of relationship you plan to produce? If you can then take it along. The applicant has to individually qualify for the visitor's visa by overcoming the assumption of immigrant intent. Take all the documents you think you can gather to do this.