I am not sure which country's laws would apply to you, but logically if the 18 year old is not competent to make medical and financial decisions on his own behalf, why should the decision to allow you to do it be any different....( so no it would not be legal).
I can see what you are trying to achieve but in most legal systems it takes more than a letter to declare someone legally incompetent to administer their own affairs (and rightly so), I suggest you and your son go ad make an appointment with a lawyer (attorney) about how to progress this.
A power of attorney is the written authorization that is given to a person so they can legally make decisions for another person. The person with the power of attorney can make decisions including legal and financial matters.
Unless his son is legally not able to make financial decisions on his own, his son must sign the policy as well.
You must be a court appointed guardian to over-ride your mother's decisions. A Power of Attorney does not give you that type of authority.
Unless the unmarried partner holds a Power Of Attorney or an adult guardianship for his or her partner they have no legal authority to make financial decisions or health care decisions for that individual. If you want to have automatic legal rights you need to get legally married.
A financial entity is a legal/financial term. It refers to a legally created person as opposed to a natural person.
Financial statements of companies requires to show only assets or liability legally owned by company so those assets or liabilities which legally not owned is not company's assets or liabilities that's why not shown.
the gardian or parent
yes, If the parties involved agree that the decision made will be legally binding
Black and white Southerners were legally segregated. -Apex
No, once you turn 18, you are considered an adult and can make your own decisions about who you see. Your parents cannot legally control your relationships at that point.
I Beleive not, however they can still contribute to the financial work but legally someone elses name will be down in the CFO position
Yes. You're already legally adult and free to make your own decisions.