No. The only person who can revoke the power of attorney is your grandmother. If she is unable to act on her own behalf then a family member can petition the court to be appointed her guardian. If the court appoints a guardian the POA would be automatically extinguished.
Yes. The power of attorney for an attorney in fact is extinguished upon the death of the principal. Therefore, the power of attorney was no longer in effect at all after your grandmother's death. The attorney-in-fact has no authority to remove funds with or without the executor's consent. An AIF who used their authority under a POA after the death of the principal is stealing.
If there are grounds to remove an executrix of a will, you typically need to petition the probate court. Common reasons for removal include misconduct, conflict of interest, or incompetence. It's recommended to consult with a probate attorney to guide you through this legal process.
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If enough signatures are on the petition, there will be a recall election in which the public can vote to remove a public official from office.
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Generally: A general POA would expire when the principal became incapacitated. If there is a durable POA that was executed when the principal was competent then someone must petition the court to be appointed the guardian. A court appointed guardianship would extinguish a durable POA.
The grandmother's estate must be probated so that title to the real estate can pass to the heirs. Then the legal owners can have any trespassers removed from the premises.
Any or all of them can petition the court to remove the executor.
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This is under the First amendment, in part: "...and to petition the Government for a redress of grievances."
This is under the First Amendment, in part: "...and to petition the Government for a redress of grievances."
A will can't make you a power of attorney. There is no point in making someone a power of attorney if you don't tell them about it. And a power of attorney expires on the death of the grantor.