swestenzweig said:
I understand the difference. I realize that CIC will never process a PR on a dependent without consent of all those who have a share in custody. However, as the original question made no reference to a PR, my response was in the context of the consent to travel form.
In the strictest sense of the word and posting, the OP could be talking about consent to travel documentation as you mentioned. But I think that since the OP has posted it in the family class sponsorship thread, OP could still be talking about PR sponsorship for her daughter.
In any case, even with the consent form, the OP still cannot force the father to sign the consent travel form as he has his rights as a father, despite his failings being a father to his daughter. The OP can try to go to court over it but need to prove that the father is negligent in the daughter's welfare. This can lead to being granted sole custody. The OP will still have a tough time forcing the father to sign it. Besides the document could still be invalid if it is signed under order or under duress. It has to be signed freely under his own free will.