Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 1 year ago

Bismihi ta'ala

Although the parents have divorced, and the children might not be living with the father, or maybe not even in contact with the father, but as long as the father is sane and alive, he is still the daughter's guardian and wali amr. Of course, if drug addiction impedes him from rational conduct, or he refuses to give consent on baseless grounds, then the case would be different. 

And Allah knows best.