I am wanting as well as my daughter is wanting to change her last name. We live in Illinois and I had her when I was 17. She has my maiden name though her father did sign the birth cert. Now I am married and have other children. We would really like for her to have my married name now rather then my maiden name. Do I need the fathers permission for this though he is absent from her life. And what do I need to do to change her name and how much does it cost. Any help would be great, but I am looking to know the laws for Illinois only. Thanks in advance, Summer

