Could he be a wali (guardian) to the daughter of his wife who was born as a result of an illegitimate relationship?

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Woman who accepts Islam and whose husband is a kaafir
Her family do not want to arrange a marriage for her and she is thinking of an ‘urfi marriage with no wali (guardian)

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Husband and wife converted together; do they need to do a new marriage contract?
She unknowingly married her daughter to a mushrik, and she has three children from him, and she is asking about the ruling
Is it permissible to marry the daughter of one’s father’s paternal uncle?
Woman who accepts Islam and whose husband is a kaafir
Her family do not want to arrange a marriage for her and she is thinking of an ‘urfi marriage with no wali (guardian)

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