if she qualifies as a dependent under the tax laws, yes you can. in so, her return must indicate she can be claimed as a dependent whether you do or not
you can claim her as a qualifying child if all these tests are met
• she has the same principal abode as you for more than ½ the tax year. Temporary absences like for school are ignored
• she hasn't provided over ½ his own support
• she didn't file a joint return unless there was no tax liability but merely filing jointly to facilitate refund of taxes withheld or estimates paid
or you can claim her as a qualifying relative if all these tests are met
• her gross income for 2020 less than $4,300
• you provided over ½ her support
• she isn't a qualifying child of another taxpayer
