Does the library have a notary on the premises?
There are notaries at all three St. Mary's County Libraries. They work by appointment and their hours are:
Charlotte Hall (301-884-2211 x3): Tuesdays, 9am-12pm, 1pm-4:30pm
Lexington Park (301-863-8188 x4): Tuesdays, 5pm-7:30pm and Wednesdays, 12 noon-4:30p.m.
Leonardtown (301-475-2846 x3): Thursdays, 9am-12pm, 1pm-4:30pm