Implementation of Islamic law of inheritance is not as rigid as your assumption. For the heirs, heritage is the right, not obligation. A heir can choose to not take the heritage, and give it to another heir. And with agreement of heirs, the portion of heritage that will be distributed can be rearranged. It's not against law of Allah because it's allowed under the consent of the heirs. What not allowed is if a heir take another heir heritage without permission from this another heir.
About business enterprise. A businessman can pass down the company to his heirs without liquidate it, and then give it in form of money. But he can pass down the company to few heirs at once in the form of shares. So the company still exist although the owner are more than one.
format_quote Originally Posted by
Temporary
Right, but isn't the amount you can choose to distrubute as you like only 1/3 of your wealth?
1/3 is maximum amount that can be given to one person. But this rule does not valid for hibah (grant) that given when the person who give it still alive. And also, if other heirs agree, one heirs can take more than 1/3.