Marrying the sister's stepdaughter

Q: Your Eminence, I decided to marry one of my relatives, but the problem is that she is my niece's sister. In other words, my sister married my maternal cousin and they had a daughter called Kawthar. My sister died, (Part No. 18; Page No. 369) and my cousin married another woman and had a daughter called Amany. The father The wife The daughter Muhammad Muhammad Siyam My sister Kawthar Muhammad Muhammad Siyam Another woman Amany What is the ruling on my marriage to Amany, being my niece's paternal stepsister? Please advise.

A: If the situation is as you mentioned, it is permissible for you to marry your brother-in-law's daughter from another woman other than your sister. Being her stepsister's maternal uncle does not affect this marriage. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.