"It is impractical to obtain the signature of the President and Treasurer or Cashier. Authorization letters are formal letters that empower somebody else to take actions on your behalf.PNC provides document and signature services including estate processing, power of attorney, medallion signature guarantee, notary services and more. Bank of America provides notary services free of charge in all financial centers. Schedule an appointment and learn what is needed for a notarization. To: All Member Banks in the Third Federal Reserve District. Attention: Chief Executive Officer. Sign the authorization below to release credit information and complete the enclosed form. Then submit it to us with your most recent financial statement. Opening 'SAMPLE BANK AUTHORIZATION LETTER' (149 KB).