Appt Consulate Philadelphia- dichiarazione di volontà, this week

We are driving from about 6 hours away to attend this appt. The website says minors under 12 documents for passport can be mailed in. Is it possible to have all those documents ready and give to staff in anticipation of his birther being registered at the commune? If not, is it possible for staff there to serve as notaries so when we do mail it in the following week or so?