A lasting power of attorney (LPA) is a document that may be used so that the finances or other issues of a person who cannot deal with them themselves may be attended to by a trusted third party – normally a solicitor or a family member.
When an LPA is presented to a bank or other financial institution, it appears to have become normal practice that it must be certified and dated by a solicitor or notary on each page of the document.
Source: Concious