notaries were usually identified by the title "ser" (note that this could also be used by priests). Some notaries held additional occupations like school teacher, for example.
Citizens of Florence could claim membership in a gonfalone other than where they lived for purposes of taxation and political sortition, usually that of their father or other ancestor and related to where the family traditionally held its highest-value properties. The 1427 catasto contains numerous examples of a declared residence (casa per abitazione) in a parish not physically located in the gonfalone from which the tax declaration was made. Residence is "surmised" when extrapolated from political service or tax records that do not indicate the parish of residence and "documented" when the physical location of a house is known.
surmised
presumed role based on incomplete evidence; for burials, we know the burial is in this church, we think it is in this tomb; for patronage and other relationships, there is evidence to suggest the connection, but it has not been confirmed