A formal promise by one party (the guarantor or surety) to another party (the creditor) to accept responsibility of a third party’s (the principal debtor) debt, if that third party cannot or refuses to pay it.

A written authorisation to represent or act on another’s behalf (the principal) in private affairs, business or some other legal matter, sometimes against the wishes of the principal. It is generally terminated when the principal dies or becomes incompetent, but the principal can revoke it at any time. See also: Online POA and Other Notary Public Services in the UAE