He wants to marry a Christian woman
Question

                I want to marry a Christian woman from the Philippines who works in a Muslim country. Do I have to inform her family?.
Praise be to Allah.Yes, you have to tell her 
    family; in fact the marriage is not valid unless the marriage contract is 
    done by her guardian or his deputy acting on his behalf. If her relatives 
    refuse to let her get married, then guardianship passes to the Muslim judge 
    who may do the marriage contact for her. 
The Standing Committee for 
    Issuing Fatwas was asked: A Kitaabi (Jewish or Christian) woman wants to 
    marry a Muslim. When her father, who is also a kitaabi, realized that his 
    daughter might become Muslim after her marriage to a Muslim boy, he refused 
    to be her guardian for marriage, and he refused to let her marry him. Please 
    note that she has not entered Islam yet. Who should be her guardian in this 
    case? 
They replied: The kitaabi 
    woman should be given in marriage by her father. If she has no father or he 
    refuses to do the marriage contract, then it should be done by the closest 
    male relative on her father’s side. If there are no such relatives, or they 
    refuse to do it, then her marriage contract should be done by the Muslim 
    qaadi (judge). If there is no qaadi, then the head of the Islamic Centre in 
    her area should do it, because the basic principle with regard to 
    guardianship of women is that it should be the father, then the closest male 
    relative on the father’s side, then the next closest. If there are no such 
    relatives, or they are not qualified to be her guardians for any reason, or 
    they refuse unlawfully, then guardianship passes to the ruler or his deputy. 
    Allaah says (interpretation of the meaning): “The believers, men and 
    women, are Awliyaa’ (helpers, supporters, friends, protectors) of one 
    another” [al-Tawbah 9:71]. It was narrated that the Prophet  (peace 
    and blessings of Allaah be upon him) wanted to marry Umm Habeebah bint Abi 
    Sufyaan who was Muslim, but Abu Sufyaan (her father) had not become Muslim, 
    so the Prophet  (peace and blessings of Allaah be upon him) appointed 
    ‘Amr ibn Umayyah al-Damari to act as his representative in the marriage 
    contract, and her cousin Khaalid ibn Sa’eed ibn al-‘Aas, who was Muslim, 
    gave her to him in marriage.  
If the closest relatives of 
    a free woman refuse to marry her to a man who is compatible and suitable, 
    then more distant relatives may give her in marriage. If there are no such 
    relatives, then the ruler should do it, because the Prophet  (peace and 
    blessings of Allaah be upon him) said: “The sultan is the wali (guardian) of 
    one who has no wali.” 
And Allaah is the Source of 
    strength. May Allaah send blessings and peace upon our Prophet Muhammad and 
    his family and companions. End quote. 
Standing Committee for 
    Academic Research and Issuing Fatwas 
Fataawa al-Lajnah 
    al-Daa’imah (18/162). 
We ask Allaah to help you 
    to do all that is good. 
And Allaah knows best.