A: She should complete her Iddat at one place. You did not furnish a reason as to why she was unable to reside at one place. If it is because the children are taking turns to care for her at their respective homes, she should complete the Iddat at one venue and after the Iddat go to the different homes to be taken care of.
The children should make arrangements to come to the house where she is spending the Iddat and provide the care for her there. Only in a life and death situation is a woman in Iddat allowed to move to another house.
Checked and approved by: Mufti Siraj Desai