They have several Chapter houses throughout the Kingdoms, and usually make a formal contract with the powers that be in a given territory. The contract gives a Witchhunter power to call upon any formal military or civilian aid. A Witchhunter is freely given food and lodging, and any equipment needed to hunt the monsters that disturb the peace of the realm. In exchange, a Witchhunter must travel the land, finding monsters and destroying them. They must also tithe all but 100 gold to the local government, if they receive any from a monsters lair. Any magical items that they can use in the hunt is kept or brought back to the Witchhunters Chapterhouse. If it is a magical item that is not useful in the hunt then it is also tithed to the local government
Fought Gormli in Carolyn Creek as well as Vuldun the Beholder just south of there. He was pretty cool.