Only with the agreement of the parents.
Only if present guardian allows.
No, it's up to her parents to decide.
No she can not.
No, both are minors.
No !
If you parents give up their rights or their rights are taken away and the judge gives it to the grandparents after they apply.
Yes!
At the age of 14, certainly not. The 19 year old would be up on charges and the 14 year old would be a runaway.
Your grandparents could fight your parents for custody.
If he's old enough to be a guardian.
No he can not.
Yes, they can move out of their house. And the police can return them to it.