Per IRS, you are allowed to count the number of months the person lived in your home with you during 2019, including temporary absences for circumstances including the following. She would be considered as living with you the whole year and pass residency tests among other requirements under Qualifying Relative.
- Illness
- Education (student living at school)
- Business
- Vacation
- Military service
- Detention in a juvenile facility
To see other requirements under Qualifying Relative, please see Dependency
