Heldann Farmers are serfs. Not much different from slaves. Some eccentric knights keep slaves which they have imported from Hattias. Norwold Slavery is legal, but not very common. Slavery is illegal.
Any slave imported is considered a freeman.
Slavery exists within the Black Eagle Barony and many freemen of Karameikos are kidnapped and sold into slavery. Slaves are one of the biggest exports of the Black Eagle Barony. Slavery is not a common institution in Sind.