Only with the Guild Owner's Seal does one have the power to reunite their people and rebuild the Guild's former glory. The qualification to be a Guild Owner is part of the Sandworm's Lair Exploration Codex in Throne and Liberty, and here's everything you need to know to complete it.
Qualifications for being a guild owner Exploration Codex Guide for Throne and Freedom
To start the Qualification of being a Guild Owner quest in Throne and Liberty, you’ll need to find the Ornate Chest in the center of Sandworm Lair. Teleport to the Sandworm Lair Waypoint and follow the chasm into the depths of the region. The Ornate Chest is located in the chasm beneath the Sandworm Lair region name marker on the map. Use the grappling hook to reach and open it. Return to the Sandworm Lair Waypoint and follow the road west to find the Overzealous Merchant in camp.
During this quest you will have to travel through the areas that are full of sandworms. If they bother you, use the Toximaw Spider Shapeshift Morph.
The merchant gave you two drawing pieces, and had you find the remaining two. The third drawing is in the Sandworm Lair Hatchery. You can enter it from any tunnel entrance in the Sandworm Lair. The Ornate Chest is on the path connecting the Northern and Southern Hatcheries. There is a small pool of water and a spherical mechanism in the middle. Use the grapple and slide to get the Ornate Chest.