There is no requirement for a sibling to be in a will.
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.
There are none unless it's stated in a will, and or the senior sibling has power of attorney.
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.
Yes unless there's a will or court order saying otherwise. The remaining family is usually the ones packing up the belongings.
There are no laws addressing this.
yes he/she is allowed
the sibling that hasn't been adopted normally would have the rite to go and see their adopted sibling but it is up to the adoptive parents, social workers advise the adopted parents to allow the siblings to stay in contact but at the end of the day it is up the the adoptive parents to deside,
An adoptive father is your legal guardian and is your father. A step father is a man who marries your mother. He does not have to adopt you and cannot unless your biological father agrees to give up his rights as a parent.
Generally, the status of a person as a "sibling" is not relevant. What is relevant is whether that sibling is or is not a beneficiary under the will. An executor has an obligation to give information to the beneficiaries of the estate as named in the will, not to all the decedent's relatives. If a sibling (whether it is a sibling of the decedent or of the executor) has no interest in the estate, he/she has no rights to information about the estate. In some jurisdictions, an executor might be required to simply give that sibling notice of the probate of the will, even if the will gives that sibling nothing, but only if that sibling would inherit some part of the estate in absence of the will. As with all legal questions, the specific answer may differ from state to state depending on that state's laws. So you must check those laws to get the precise answer.
In general, living arrangements typically do not affect the rights of siblings when a parent dies. The distribution of assets and inheritance is usually determined by the parent's will or state laws, regardless of where the siblings live. Each sibling is entitled to their fair share of the estate according to these established guidelines. Consulting with a probate lawyer can provide specific advice based on the individual circumstances.
Yes, a sibling can request a power of attorney (POA) to show records of accounts, particularly if they have a legitimate interest in the affairs being managed. However, the POA is not legally obligated to disclose records unless specified in the POA document or required by law. If the sibling is concerned about the management of the accounts, they may need to consult a legal professional for guidance on their rights and options.
Power of Attorney is to give the sibling mentioned and acknowledged by the mother to perform their affairs when the mother cannot such as paying bills; investing money, etc., and no one else can take the right away from the Power of Attorney mentioned since the mother requested this person, not even the sibling who is 40 years old and living at home. Once a parent dies the Power of Attorney no longer exists and the Executor (male) or Executrix (female) named will put the Will into Probate which will pay off any debts before the Estate is settled and any property or monies left will be divided as the parent's Will stated.