People outside the US can apply for ITINs - it's just a bit more complex (like how to you get certified copies for the IRS. But if where they are living has means of certifying their own documents this can work.) And she might try the American Embassy - or perhaps a consulate. It was a bit easier (HAH!) when notaries could certify copies - all you needed from a foreign country was a notary stamp with an Apostille (A government document saying that the notary was a notary in that country.)
