Rescue Garren's child as intended and do not propose to obtain the landdeed for Firkraag, after the rescue, Garren will offer Paladin protagonists a place in the Most Noble Order of the Radiant Heart so they can become paladins with patron, holy warriors with stronghold. Travel back to Amn, go to the Radiant Heart building in SE part of the temple district and talk to Prelate Wesselan in the top side room, agree to what he says, then walk back to the hall to meet William Reirrac. You are now official member of the Order will start out doing the contributions.