This quest is easier than those that led to it, mainly because there is no pressure on efficiency. There is no need to protect a character who ruins the quest if he/she dies, and if the party gets wiped out, they are simply resurrected. So, you can take as many shots as you like. The toughest aspect is that the party size is only 4 in Grendich Courthouse. A party of 4 needs good organization and determination to complete this quest. Alternatively, you can start from Yak's Bend (where the party size is 6) if the quest is too hard. If you do, do not enter Grendich Courthouse or the party of 6 will be split.