Haw. Rev. Stat. § 516D-12: Mandatory arbitration of rent renegotiation.

(a) Every residential lease shall contain a provision for the mandatory arbitration of any rent renegotiation reopening.

(b) In the event that a residential lease does not contain a mandatory arbitration provision, the following arbitration procedure shall apply:

(1) Rent shall be determined by three impartial arbitrators, who shall be recognized real estate appraisers;

(2) Each party shall select an arbitrator, both of whom shall select the third arbitrator;

(3) The three arbitrators shall determine the rent renegotiation which shall be final, conclusive, and binding on both parties; and

(4) Lessor and lessee shall each pay one-half of all proper costs and expenses other than attorneys' fees.