Exactly.. this was the one I was referring about.Thank you @DEEPCUR for your response. I googled the template you mentioned; just to confirm is like following:
Commonwealth of Massachusetts County of ___________
On this _____ of _________, 20___, before me, ___________ the undersigned notary public, personally appeared___________, (name of document signer) proved to me through satisfactory evidence of identification, which were ___________________, to be the person whose mark is made on the preceding or attached document, and acknowledged to me that (he) (she) signed it voluntarily for its stated purpose.
Make sure the letter is in one page with this at the bottom. There's a format in word that'll make the page in lengthy format (A3 I think).. use that format to draft the letter.