Parents divorced, children and mothers, and fathers ignored children for six years. If you want to immigrate, you need your biological father to sign it. He won't sign it anyway.

You can ask the child's grandfather or grandmother, or grandfather or grandmother to sign the agreement. It is a notarized consent form. As my grandfather said, the content can be expressed as follows: after my daughter divorced her son-in-law, my grandson has been raised by my daughter, and my grandson's biological father refused to fulfill his due obligations of raising and guardianship. Now that my daughter has applied to settle in the United States, I agree that my grandson will be brought to the United States by my daughter, and her daughter will assume the responsibility of guardianship.