In the Name of Allah, the Most Gracious, the Most Merciful.
Salāmu ala manittabal-huda (May peace be upon those who follow guidance).
Sister,
It is a pleasure to offer you guidance on Islamic issues. We serve you for the pleasure of Almighty Allah.
It is permissible for a Muslim man to marry a Christian woman. Almighty Allah says:-
Lawful for you in matrimony are chaste women from among the Believers and chaste women from among those who have been given the Scripture before you.[1]
It is not necessary for you as an adult female to have a Wali (guardian) for your Nikah to be valid.
We advise you to obtain authentic Islamic literature and educate yourself on Islam. Be open minded and objective in searching for the ultimate truth.
Marriage to a Muslim will expose Islam more to you if the person is Allah fearing and a practicing Muslim.
You may also refer to our website for women (the ideal woman website) on www.idealwoman.orgfor guidance. This website is dedicated to women seeking Islamic guidance on a range of issues. The information there will be useful to you.
Feel free to contact us for any further assistance.
And Allah Ta’āla Knows Best
Mufti Saeed Ahmed Golaub
Islamic Solutions
Jamaica
References
[1]{حِلٌّ لَهُمْ وَالْمُحْصَنَاتُ مِنَ الْمُؤْمِنَاتِ وَالْمُحْصَنَاتُ مِنَ الَّذِينَ أُوتُوا الْكِتَابَ مِنْ قَبْلِكُمْ إِذَا آتَيْتُمُوهُنَّ أُجُورَهُنَّ مُحْصِنِينَ غَيْرَ مُسَافِحِينَ وَلَا مُتَّخِذِي أَخْدَانٍ} [المائدة: 5]