The corporation may—

((1)) adopt and amend a constitution, bylaws, and regulations to carry out the purposes of the corporation;

((2)) adopt and alter a corporate seal;

((3)) establish and maintain offices to conduct its activities;

((4)) make contracts;

((5)) acquire, own, lease, encumber, and transfer property as necessary and appropriate to carry out the purposes of the corporation;

((6)) establish, regulate, and discontinue subordinate State and territorial subdivisions and local chapters or posts;

((7)) publish a magazine and other publications;

((8)) sue and be sued; and

((9)) do any other act necessary and proper to carry out the purposes of the corporation.