All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.
Marriage is not an easy matter; rather, it is a long journey in one’s life and it requires carefulness and patience before a girl chooses someone as a desired husband.
It is unacceptable negligence that some girls agree to marry a man just by knowing him through the Internet and so on. So, he pretends to be righteous, pious and having good manners, then it becomes clear that the matter is otherwise. Therefore, we warn against doing this.
The best way to marry is that a girl should start by supplicating Allaah to bless her with a righteous husband, and once she finds someone who is willing to marry her, she should ask trustworthy people who know him about his religion and his moral conduct. Then, if they say good about him, she should perform the Istikhaarah prayer about him. For more benefit about the Istikhaarah prayer, please refer to Fatwa 81434.
Of course, the marriage contract cannot be valid unless it meets certain conditions, the most important of which is the presence of the woman's guardian and two witnesses. For more benefit, please refer to Fatwa 83629.
Therefore, it is not permissible for a woman to marry herself off, as such a marriage is void. Besides, it is not enough to take the consent of the husband over the phone; rather, he or his representative must be present at the time of the contract. Also, him signing the paper of marriage or not signing it does not have any effect. For more benefit, please refer to Fatwa 83780. In brief, this marriage is void and it must be invalidated.
However, for separation to take place, the husband should issue divorce or the Islamic judge or whoever can act on his behalf, like Islamic Centres, should invalidate the marriage. For more benefit, please refer to Fatwa 92478.
As regards this woman marrying another man before divorce taking place and before the end of the waiting period, then she is not permitted to do so. Also, just signing the divorce papers does not lead to divorce unless the husband had intended it.
Allaah Knows best.