From InquisitionWiki

A freeman is a person who works solely to support his or her self, and is usually moderately skilled. They can own land (if they can afford it) and exercise rights over other types of property. Usually, the freeman owns nothing more than the equivalent of a cottage or a small amount of trade goods.

Freeman Professions

Animal trainer  : trained animals to perform for entertainment.
Carder          : brushed cloth during its manufacture.
Cask maker      : made wooden casks, buckets, barrels.
Chambermaid     : female servant, attended to rooms in a house or inn.
Circus performer: entertained with a circus for a share in profits.
Chandler        : made candles from tallow or wax.
Cupbearer       : attendant who filled and served cups of wine.
Doctor          : an educated, licensed medical practitioner.
Dyer            : dyed cloth in huge heated vats.
Falconer        : cared for and trained hawks for the sport of falconry.
Glassmaker      : made, shaped and/or cut glass for sale.
Gold/Silvermith : a smith who forges and shapes gold or silver.
Huntsman        : earned a living hunting wild game for meat and/or pelts.
Innkeeper       : rented rooms, supervised and took care of an inn.
Marshal         : carried out judgments of a court of law.
Mason           : craftsman who worked with stone or brick.
Messenger       : servant of a lord who carried receipts, letters, & commodities.
Porter          : made sure no one entered or left a household without permission.
Sherman         : sheared woolen cloth to make a smooth surface.
Shipwright      : carpenter who helped build and launch wooden vessels.
Shoemaker       : craftsperson who made shoes.
Soap maker      : made and sold soap.
Tanner          : tanned skins and hides to sell or use in clothing, tack, etc.
Weaver          : cleaned and compacted cloth.
Woodworker      : made things out of wood.

NOTE: These are common professions for the freeman class, but they are not restricted to that class alone.