2. How my husband’s assets will be distributed in his lifetime and after his death taking into consideration his brothers and sisters.
بسم الله الرحمن الرحيم
Your question is untimely. As long as you are alive you are sole owner of your property and assets. None has any share in it and the heirs will get their shares after your death. So this question should be asked after your death. However, you should know that if your husband is alive at the time of your death then he will get fourth share, while your father will get sixth share and the remaining will be divided among your son and daughter as per the rule of “the male will get a share equal to that of two females.” In presence of your son, your brother and sister will get nothing. Similarly, suppose if the husband dies before you then you will get 8th share from his property while the rest will be divided among the sons and daughters and his brother and sister will get nothing in presence of son.
Allah knows Best!
Darul Uloom Deoband