(1) A married person may bargain, sell, assign, and transfer his or her separate personal property, carry on any trade or business, and perform any labor or services on his or her sole and separate account.
(2) The earnings of any married person from the trade, business, labor, or services shall be his or her sole and separate property and may be used or invested in the person's own name.
(3) He or she may sue alone or be sued in the courts of this state on account of the property, business, or services.