Reply To: Where to find a notary? Home › Forums › General Discussion › Where to find a notary? › Reply To: Where to find a notary? Linc Park SE June 23, 2014 at 8:12 am Mary at Sincerely Yours at 325 Pennsylvania Ave SE – throwback old timey mail and phone service office on the second floor, cool photos on the wall – Notary Service is $2.00. She even wrote a book on Nixon’s dog – old school DC.