Marrying the step daughter of the brother

Q: I am currently a resident of Britain, and I originally come from Jerusalem. I married a divorced British woman (Part No. 18; Page No. 368) who had a son and a daughter, and we had another daughter whom we called Yasmin. Then, my wife and her children were guided to Islam, praise be to Allah.My question is the following, may Allah reward you: I have a brother who has become of age, and he wants to marry my stepdaughter who is now called Aminah, and is fourteen years old. Is this permissible in Shari`ah (Islamic law)? Waiting for your reply.

A: If the situation is as you mentioned, and Aminah is your wife's daughter from another man, it is permissible for your brother to marry her. Your marriage to her mother has nothing to do with this marriage. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.