When you have no chance to represent your interests yourself, you ask another person for help entrusting him/her to do what you can’t do unassisted. Usually an authorized representative (called an agent or attorney-in-fact) is entrusted to act on behalf of the natural or legal person (called principal) and to represent his/her interests on the basis of notarized Power of Attorney.
Power of attorney may be general, special (limited) or temporarily limited and can be issued in any language.
Notarization of Power of Attorney is a notarial act during which a notary certifies principal’s signature and will to be represented by a third party.