There are states that it is necessary but there are cases that you do not need an assistance, or even require power of attorney.
A power of attorney has absolutely nothing to do with an estate. All power of attorneys expire on the death of the grantor.
"Attorneys general" is the correct term because "attorney" is being used as an adjective to describe the type of general, just like "doctors' office" refers to an office for doctors. So, the possessive form properly applies to "attorneys."
No, a power of attorney does not give you the authority to represent someone in court. Only licensed attorneys can represent others in court.
The Power of Attorney has no rights over a parent of sound mind. The power of attorney is given by the parent and can be withdrawn at any time. And the power of attorney automatically ends upon the grantor's death.
If your mother grants you the power of attorney. Otherwise it will require a court order.
Some states do require the attorney-in-fact to also sign the form.
Only the grantor can remove a power of attorney. In some cases that would be the court.
In most cases it is possible. Unless there are restrictions in the power of attorney document.
Having power of attorney may not grant one access to a will. It may require specific permission.
They generally take cases such as drawing up wills, suing abusive nursing homes, planning future medical expenses, and drawing up power of attorney forms should an elderly relative become incompetent due to dementia.
It depends on the State that you live. Some States require that certain provisions be in a power of attorney form as well as having a notary sign the document and other States are more lenient and only require both signatures from Principal and Attorney-in-Fact.
Generally, that language means the attorneys-in-fact can sign together or alone for the principal.