Hi Guys,
My first post here. Loved the game, even though I liked BG2, NWN2 and DA:O abit better.
I managed the peaceful resolution with Llengrath and it was very satisfying in terms of RP and the permanent stat boots. My dual wield rogue PC triggered two options for convincing Llengrath. If I remember correctly it was [Honest 2] and Resolve [19 or 20]. I went with Resolve because at that time I didn't really understand the game mechanics behind these choices and I didn't think such low honestly requirement would 'convince' Llengrath.
Hope this helps.