N.D. Cent. Code § 1-04-20

Any transfer of any legal or equitable title to or interest in any real property in the state of North Dakota made prior to March 5, 1943, by any person, firm, or corporation to himself, herself, or such firm or corporation and any other person or persons, firm or firms, corporation or corporations, including the spouse or spouses of said grantor or grantors, in joint tenancy with right of survivorship, is declared legal and valid.