N.D. Cent. Code § 45-22-06
If a person purports to enter into a contract or other undertaking on behalf of a limited liability partnership and with intent to defraud does not disclose to the other party that part of the limited liability partnership's name that complies with subsection 1 of section 45-22-04, that person is personally liable on the contract or undertaking unless that person can show in making the contract or accepting the undertaking that the other party had knowledge or notice that the partnership was a limited liability partnership, or did not rely on the partnership being an ordinary partnership. Any partner of a limited liability partnership who with intent to defraud consents to a person not making the disclosure described in this section is also personally liable on the contract or undertaking, unless that partner can make the showing described in this section.
N.D.C.C. § 45-22-06