A signature guarantee is a certification given by certain organizations that a signature is genuine, the signer is the appropriate person to endorse, and the signer has the legal capacity to sign.
Fidelity requires a signature guarantee when it is essential to ensure the authenticity of the signature. A signature guarantee is a widely accepted way to protect customers and investment companies from the legal repercussions resulting from invalid or illegal endorsements.
You should be able to obtain a signature guarantee from a bank, a broker, a dealer, a credit union (if authorized under state law), a securities exchange or association, a clearing agency, or a savings association. A notary public cannot provide a signature guarantee. We cannot accept a notarization instead of a signature guarantee.