Commoner: Coming from a humble background these are everyday folk, used to hardship and poverty. Generally has a profession and in smaller settlements might work for themselves or a merchant in larger towns and cities.
Squalid. You live in a leaky stable, a mud-floored hut just outside town, or a vermin-infested boarding house in the worst part of town. You have shelter from the elements, but you live in a desperate and violent Environment, in places rife with disease.
Faction. A factional enemy could be a religous order, a merchants guild, an order of assasins, or an order of holy knights. It is a enemy that may have agents and spies taht act of their behalf. Could be on the run, part of a rival faction, or want to join