A. if that person dies first. The man's house will be his personal legacy and should be divided equally between his two sons and three aunts.
B. If the woman dies first, the woman's property shall be divided equally between her son, parents and the man.
C. If you two brothers only want to inherit your father's property, you can take the following measures now: (1) Ask your father to give you the property now and go through the corresponding transfer procedures; (2) Let your father handle the notarized will, and the written will will hand over all your father's property to your two brothers for inheritance.
D, there is a special situation, that is, there is a dependency relationship between stepchildren and stepparents. For example, a man or a woman is seriously ill, and at this time, both sons have given a lot of money to treat the man or the woman, which means that you and your aunt have formed a dependency relationship and you can inherit the aunt's property.