Answer:
(Fatwa: 121/113/L=1431)
You also know the ruling that talaq took place on your mami (wife of maternal uncle) and she was divorced with irrevocable talaq and became haram for your uncle. Now, he will not be allowed to live with her without valid halalah. If there is some legal compulsion, you should contact any advocate.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
