Notarization acknowledges the authenticity of documents executed, guaranteeing that they fully comply with all requirements set forth in each pertaining jurisdiction. Certifications by notary public may also be required to acknowledge the authenticity of copied documents, such as passports, rectification of signatures stamped in a document, purchase and sale of real property, among others. Prior to taking any action, you should seek advice of a specialist in the pertaining field in order not to make potential mistakes which may result in a more expensive way to fix later on.