Yes, you may still claim your daughter as a dependent if she is under age 24. If she is required to file a return - generally because she had taxes withheld or has unearned income over $1,050 - she will not claim her personal exemption.
In TurboTax, there is a question which says, "Someone else can claim me as a dependent on their tax return" All she has to do is answer yes to this question and to the followup question "And this person will claim me on their 2017 tax return."
