LOLA, what is your standing in the congregation? From your post about preaching, I assume that you used to be a JW. Are you being shunned? If so, reason with her that as long as she remains unbaptized, she can still talk with you without guilt. What happens after baptism? Will she be pressured to move in with her dad?
Tell her the true cost of baptism. Don't hold back the evil horrors of being shunned. Make her imagine her life with her father and closest friends turning their backs on her in times of need, illness, and even death. Make her understand the evil filthy side.
NC