What is legalisation of the Deed Poll
All legalisation means is that the UK government confirms the authenticity of a legal document or a certificate which is issued within the UK. This enables foreign countries or their embassies to accept the documents because their authenticity has been confirmed by the UK government.
Legalisation is handled by the Legalisation Office of the Foreign and Commonwealth Office (FCO), Milton Keynes, Buckinghamshire. You need to take the Deed Poll and have it witnessed by a Solicitor or a notary public. You then send your executed Deed Poll to the Legalisation Office in Milton Keynes, Buchinghamshire.