Contact your legal aid department. Find out just what you can and cannot do. This varies from state to state. You DO have rights as a grandparent. You really need to find out why your daughter hates you so much. Are you a lot alike ? Try to talk to her and find out what happened. Don't be judgemental, it will only push her further away. See if she will have coffee with you and let her know you want to talk about this. If the problem is on your end, apology is needed. We are talking about open wounds, things need time to heal. When you talk to her, no yelling, no placing blame and no threats. Remember you are family. Next to God that's all we have in this life. You must treat her as you want to be treated. She is an adult, no longer a child treat her that way. Let her make choices for her children.
She after all is the parent. Is she married ? have you talked to her partner about this ? God be with you on this wejar2005. This is a really sticky one. Let me know how things turn out.
Ken Reed Sr