Biological Father Is Not in the Picture.

Talk to your daughter. Find out if she doesn't want to see grandparents or if she refuses to visit because she feels they will push her to see her dad (who I am guessing is sure she knows doesn't want to see her). If it is just the latter, then ask her if she would be ok w/ them coming to see her at your home. Once you determine that, have a heart to heart with grandma. Tell her that you very much want your child to have a relationship with them but considering her father has made it clear he doesn't want anything to do with her, she is not comfortable visiting because she know it includes a visit to dads. Ask them to come to your home or a local public place (mall, park, etc) to visit with your daughter.

If she doesn't want to see the grandparents, try to find out why and go from there.

I like Lynn's answer. If you think that's the reason she won't see them, see if she's willing to come up with a compromise, as it's not the grandparents or your daughters fault that your ex is being a jerk.

All I can tell you is that your little girl is already seeing the "real" person he is. He sounds like a loser, allowing his new wife and her kids to come between him and his daughter. I hope you are getting child support. That's the least he can do--which sounds like his basic M.O.
I wouldn't force her to see the grandparents. If they really want visitation, they can go to court.
And I wouldn't answer the phone if/when they call.

Your daughter is 7 years old now, I take it? If it was me & she didn't want to see her paternal grandparents, I wouldn't force it. They can give you all the attitude they want to, but that doesn't mean you're going to allow them to bully your daughter into visits because boy, doesn't that sound like a fun weekend, huh? Besides, you're the adult & can shoulder the nonsense they're attempting to dish out without allowing it to affect you 7 year old. Unless they have a court order, I would allow her to make her own decisions. You can offer guidance & you can make suggestions to try & help her make the decision you would make if you were her, but in the end I feel like she's old enough to know she doesn't want to spend time with them & therefore shouldn't be forced to.

What??? this seems pretty messed up. So your two daughters share the same birth father but he only sees the older one??? So what if the younger tells a lie...As a parent he needs to take disciplinary measures as should you to make sure she understands that lying is not good. Not seeing him will have long term effects on her and I dare sare a lot of anger management/counseling for unresolved issues. I think you need to make a schedule/arrangement so he can have a relationship with both of his children.

Lynn is spot on with her answer. It does sound like your daughter associates the grandparent's with visits to her father and doesn't want to "tricked" into seeing him. Definitely see if it is okay with her for them to come to your house or a neutral location for a visit.

Kids will develop their own opinions about their absent parents - mine sure did at that age. The important thing is to talk to them about about what they feel and teach them skills to cope with those feelings. How does she feel about her older sister still seeing their Dad? I would want to ensure that she is not feeling guilty or left out or anything. Definitely talk to her about that. How does she feel about Dad not wanting to see her? This could negatively impact her self esteem if not handled correctly.

If there is a court ordered visitation agreement please keep good records of when and why she is not seeing her father. You don't want this to come back and haunt you if he decides that you have "with-held" her from him. Courts do not usually take a 7 year olds opinion into consideration, so it is important that you document, document, document.

On the plus side - you have a wonderful husband who is being a good father to her. Count your blessings there!!!!

Good Luck.

Maybe they could visit her in your own home until your daughter feels comfortable to visit them elsewhere? Dont' know if that will work but maybe it is worth a try.....

Your daughter was only 5 years old when this began. I'm just curious as to why you have allowed this to go on for so incredibly long. Self esteem and identity comes from both parents. Why would you let your 15 year old but not your 7 year old continue in this dysfunctional relationship. I terrified to think of how your girls are processing this relationship. Get counseling for your 7 year old and you may want to go to the courts to have some kind of court ordered visitation in place because something just isn't right here. Understand the courts my require your 7 year old to have visits with her father. As this has been for the last 2 years, it just doesn't sound healthy to me at all. Do what is in your daughter's best interest for her development as a emotionally healthy and whole person.