:bism: (In the Name of God, the Most Beneficent, the Most Merciful)

Hi, sis. Hope you're doing well! There was a member called MorbidEntree who'd I think become a Muslim on IB. And here is a
merged thread starting from pg. 7 of MuslimInshallah's post especially all of what MuslimInshallah says wherein you could see what had been said to him to make him consider reverting. I'm linking you to that thread to see for yourself what you can maybe say to your daughter to have her think about reverting to Islam. Basically, and this is really important, you'll need to focus on the (1) Oneness of Allah, and (2) the Mercy and Forgiveness of Allah.
InshaAllah (God-willing) when the time is right, she'll consider for herself the path to God and see Islam as being the right one for herself; the door and invitation to Islam will ALWAYS be open to her. And I'm glad that you do not reject her but love her;
InshaAllah (God-willing) loving her and being kind with her and being the best mother to her will enable her to see the character of Islam. In fact, I'd say that while
dawah is going to be part and parcel of how you approach her with Islam, your character and your willingness to be there for her as a merciful human being should speak to her more about what Islam is than about what you say. And of course, Islamically, if she's passed puberty, you're to act as her adviser and mentor because treating her like an adult able to make her choices is what is required of you as part of good parenting because it'll enable a healthy and positive relationship to flourish.
For all of us, sinner, saint, atheist, homosexual, whatever, Allah's Mercy is available for us to avail for ourselves, and we'll find that Mercy no matter when or how we turn to Allah. This is a long life. Let's hope for the best for all of us.
:wa: