Answer
(Fatwa: 1017/616/L=1432)
After paying all the due rights preceding inheritance, the property and wealth of your sister shall be divided into 13 shares. Her husband shall get 3 shares, her mother 2 shares while both the daughters 4-4 shares each. Brothers and sisters shall get nothing. The second wife of husband and her children do not have any share in the property of your sister; because they are not heir. The detail is as follows:
Detail:
Husband: 1×3 = 3
Mother: 1×2 = 2
Daughter: 2×4 = 8
Brothers: 00
Sisters: 00
Total: 13, Shares
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband