Child BirthCertificate

I met this man back in 2004 We never had a romantic or any type of relationship but as just friends.A few months after knowing and spending times with him he suggested to adopt my oldest child that s a 14 back then now she is 15.Well the adoption was processed but i cancelled it or just never wnt through.But he somehow manipulated me of signing of the birth Certificate to change her name .Now things arent working out we no longer friends but he manage to have my daughter agains me and now she leaving there with him in his house buti dont think is appropriate for her to be there.He is trying to stop my daughter and me from having a mother daughter relationship.Now I want this man out of the picture but i need he's nae taken out of the birth certificate ,how about can i do that ,please help me ,i know something not good is happening in that house with that man and i need to get her out of that mans house.But he has the birthcertificate with his name on it and is going to be not that easy and she doesnt wanna go with me,But I rather she go with any her blood relatives than a man who we only knew for 3 years to raise her and who is now the best thing for her .Please help me I'm desperate for some answer and advise what I should do in this matter