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 is His slave and Messenger.
The permission of the guardian is an indispensable condition for a valid marriage, according to the view of the majority of the Muslim scholars. The Prophet said: "Marriage is invalid without the (consent of the) guardian." [Ahmad and At-Tirmithi who classified it as sound].
Therefore, it is not permissible for a far guardian to marry a woman while her immediate and close gardian is present. Therefore, it is not permissible for your brothers to act as your guardian and marry you off while your father is present. Also, your mother cannot marry you off because the Prophet said: "A woman cannot marry another woman and she cannot marry herself off." [Ibn Maajah and Al-Albaani classified it as sound] However, if your father does not want to marry you off to a religious person who has a good moral conduct and who is suitable for you, then, in this case, you may sue him before an Islamic judge who will marry you off or change the guardianship from your father to your other guardians.
Moreover, we advise you to be kind and dutiful to your father even if he was neglegent in nurturing you and spending on you. Allaah Says (what means): {And We have enjoined on man to be dutiful and kind to his parents….}[Quran 46:15] Allaah also Says: {And your Lord has decreed that you worship none but Him. And that you be dutiful to your parents….}[Quran 17:23].
Finally, we ask Allaah to reconcile between you and your father and guide him to fulfill his responsibilities and enable you to fulfill his rights upon you.
Allaah Knows best.