How do you put up a Power of Attorney in the UK?
Your lawyer will create a Power of Attorney in both Spanish and English, unless you are fluent in the language. You will sign the document in front of a notary public in Spain or the nation in which you will be signing it. The notary will need to examine official documents, such as a passport, to confirm your identity. The Power of attorney Spain must be signed with a Hague Convention Apostille by a notary public in the UK, and then it needs to be legalized by the Foreign and Commonwealth Office's Legalization Department in order to be used in Spain.