I'm not an attorney. But if I'm reading the question correctly, the ONLY time a will can be changed is before it gets to probate. And it can be changed only by the testator, the one whose will it is. Once a will is under the control of probate court, and that would be after the death of the testator, the court decides whether the provisions of the will are legal, and then the will is executed as written. Assuming that we are talking about the will of a parent and the actions of sibling children of the parent, if siblings could just freely change wills after a parent's death, there would be utter chaos in probate courts. If there is a question about the competence of the testator to make a change, it is probate court that determines what will happen.
The sibling does not have the right to change a grant deed. Only the property owner can make such a change.
If a will has "come out of probate" then the testator must have died and the will was allowed. It cannot be changed.
* The Will will go into probate first. If a sibling chooses to live in the house then they would have to buy the house from the other siblings and if this is not possible then the house will be sold and monies put into the total Estate.
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.
YOu need to be over 18 years of age, and petition the probate court for custody in the county the child lives in.
A power of attorney represents a living person. After their death, you would apply to be executor of their estate with the probate court.
Apply to the probate court for the power. If the circumstances warrant it, they can grant that power.
You need to consult with an attorney who can review the title and how it was created. If the sibling was unmarried and without children their interest may pass to you. However, you may need to probate their estate. If there is a surviving spouse or children of the deceased sibling the situation becomes more complicated. The attorney can advise you of your options under your state laws.
You cannot acquire a Power of Attorney for a person who has died. If there is property that must be transferred, and no will, you must petition the probate court to be appointed the Administrator of your deceased sibling's estate.
No because a gun cannot be changed by a normal sibling or adult
A sibling cannot appoint himself the administrator of an estate. Only the probate court can make that appointment. He needs to petition the court to be appointed and if you have objections you can submit them to the court. There will be a hearing and the court will review your objections. Another sibling could request appointment and the heirs could voice their approval of that other sibling as administrator. The court will render a decision after considering the testimony and appoint the administrator. Only a court appointed administrator has legal authority to settle the estate. You should consult with an attorney who specializes in probate who can review your situation and explain your options.
If the estate has been filed for probate you can go to the probate court and read the will. Once a will is filed for probate it becomes a public record. You can even get a copy to keep for your records.