There is no inheritance from a living person. If you received the property and it became under your control, then you own it. It is not considered as part of your father’s inheritance after his death. If you did not receive it, then it is considered as inheritance after the death of your father.
The difference in deriving the laws between religious jurists naturally originates from their difference in understanding the religious texts or considering some of them over the others. His Eminence, Sayyid Al-Hakeem (may Allah prolong his life) sees that alcohol is Najis, if it is an intoxicant and naturally liquid. Based on this, the prayer is invalid if the praying personâ€™s body or clothes came in contact with it.
So if you follow his Eminence, the mentioned law should be observed.
The acceptance of your father does not affect the validity of your marriage since it is not mandatory for the son to have his father's permission in getting married. However, try to convince him of your decision since the father has a great position of respect and appreciation from his children in Islamic ethics.