Does the deceased's wife's maintenance from the shop's rent continue until the inheritance is distributed, or is it deducted from her share of the inheritance?

A wife whose husband has passed away is not entitled to maintenance from her deceased husband's wealth because her right to maintenance ceases with his death. Her maintenance would be from her own private funds. If the shop rent belongs to the deceased, it is part of the inheritance, and the wife has a share in it. The heirs may donate and allow the wife to spend from it, provided that the heir is an adult, sane, and of sound judgment.