A child.
That depends on the laws of the county in which you and or your sibling reside. In some countries there is an inheritance tax that may have to be paid.
That's the decision of the executor of the estate. If the other siblings want to keep the property, they would have to pay the other for their share.
Yes. You should seek the advice of an attorney who specializes in probate to make certain the title to the property is transferred properly. In some jurisdictions a deed must be executed to transfer title to real property effectively.
The one named executor. Otherwise, none of them have control and the court must appoint someone.
Yes, a sibling can exclude other siblings as beneficiaries of their estate by specifying this in their will. However, laws regarding inheritance and family provisions may vary by jurisdiction and could impact the ability to completely exclude siblings from inheritance. It is advisable to seek legal advice when making such decisions.
What income they do inherit and receive could effect their SSI for that year.
The person harmed (likely the principal) can sue for breach of fiduciary duty. I'm not sure the sibling has any standing, unless it's for tortious interference with inheritance rights.
I'm not sure about the biology of stubbornness as a Polygenic inheritance like eye color or hair color. I do think that some of stubbornness can be a learned trait from a parent to child or sibling to sibling. I see a lot of mimicking in my 15 month old child. She is taking on actions of her older sisters and us. She gets her attitude from us, she even decides whether or not she should cry by our reactions.
Generally, yes. You can check the laws of intestacy for your state at the related question link provided below.
Most dictionaries define siblings as persons who share a common biological parent. However, there is another factor to one's holding the status of sibling. That involves a legalrelationship with the same parent rather than a biologicalone. In that context a legally adopted brother or sister would be considered a sibling. This distinction becomes especially important in the case of inheritance. Most jurisdictions do not allow adopted siblings to marry.
In most jurisdictions a legally adopted sibling is a legal heir. You would need to check the laws of your state. You can find state-by-state intestacy laws linked in the related question below.