Subject to any contractual limitations binding upon the holders of any issue of bonds, or a trustee for the holders, including the restriction of the exercise of any remedy to a specified proportion or percentage of the holders, any holder of bonds or trustee, for the equal benefit and protection of all bondholders similarly situated, may:
A right or remedy conferred by this chapter upon any bondholder, or upon any trustee for a bondholder, is not intended to be exclusive of any other right or remedy, but each such right or remedy is cumulative and in addition to every other right or remedy and may be exercised without exhausting and without regard to any other remedy conferred by this chapter or by any other law of this state.
N.D.C.C. § 61-39-15