The children could be qualifying relative or “other” dependents, if one of the families where they lived paid more than half their total financial support for the whole year, or if every family that paid more than 10% of their support signs a multiple support agreement designating one of the families as being allowed to claim them.
However, this type of dependent does not qualify for the $2000 child, tax credit, or the dependent, CareCredit, or ahead of household status. It would be a $500 credit for child only.
