Haw. Rev. Stat. § 425E-113: Dual capacity.

A person may be both a general partner and a limited partner. A person that is both a general and limited partner shall have the rights, powers, duties, and obligations provided by this chapter and the partnership agreement in each of those capacities. When the person acts as a general partner, the person shall be subject to the obligations, duties, and restrictions under this chapter and the partnership agreement for general partners. When the person acts as a limited partner, the person shall be subject to the obligations, duties, and restrictions under this chapter and the partnership agreement for limited partners.