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.