[header] How to notarize a power of attorney [title] Research your state laws. [step] Not all states require that the agent and principal sign the power of attorney document in front of a notary. [substeps] For example, in mississippi, the power of attorney document must be signed in front of a notary. 
In new hampshire, signing in front of a notary is not required. You can find out whether your state requires notarization for a power of attorney document on the website uslegal.com.