The support she provided for herself is $14,000. To meet the support test, the child cannot have provided more than half of his or her own support during the tax year. Did her $14,000 amount to more than half. Support covers everything; food, housing clothing, transportation, entertainment, etc.
Apart from that, if she qualifies to be your dependent, you can't decline to claim her in hopes that she will get a benefit that she is not entitled to. Even if you do not claim her, she has to say that someone could claim her on her own return.
She will have to file Form 8615 as well.
