Since she was age 24 or older in 2017 and has gross income of $4,050 or more then no one can claim her as dependent. Regardless if she was a full time student or that you provided over one-half of her support. She can no longer be claimed as a dependent under the Qualifying Child rules due to her age. She would only be eligible under the Qualifying Relative rules. Where the rule states that the person must have gross income of less than $4,050.
To be a Qualifying Relative -
1. The person cannot be your qualifying child or the qualifying child of any other taxpayer. A child is not the qualifying child of any other taxpayer if the child's parent (or any other person for whom the child is defined as a qualifying child) is not required to file an income tax return or files an income tax return only to get a refund on income tax withheld.
2. The person either (a) must be related to you or (b) must live with you all year as a member of your household.
3. The person's gross income for the year must be less than $4,050 (social security does not count) in 2017
4. You must provide more than half of the person's total support for the year.
5. The person must be a U.S. citizen or a U.S., Canada, or Mexico resident for some part of the year.
6. The person must not file a joint return with their spouse.
