You, sir, are a deceiver. This is 3.P (also known as Pathfinder), not 3.5, as the thread title says.

Fearless says it comes at 4th level in the table, but 3rd level in the text. 4th sounds better, since he gets plenty at 3rd already.

Bulwark Stance is ridiculously powerful for its level. It would be better to start smaller and later on increase it to 30 ft.