Indiana Code Title 29. Probate § 29-1-2-3.1

Sec. 3.1. A married man may, in his own name as if he were unmarried, sell, barter, exchange, mortgage, lease, contract to sell, convey or execute any instrument, contract or commitment of any kind whatsoever affecting or in relation to his real property, and the deed, mortgage, lease or other instrument, contract or commitment so executed by a married man without the joinder or assent of his wife shall have the same effect as if it had been executed by the husband joined by his competent wife.  Any such act or instrument, or any sale, disposition, transfer or encumbrance of the husband's real property by virtue of any decree, execution or mortgage, even though the wife is not a party thereto, shall extinguish the right of the wife to her one-third of any of said real property and shall extinguish any other right, choate or inchoate, of the wife in said real property which arose or could arise by reason of the marital relationship.