The executive board of a master association of any common-interest community that was created before January 1, 1975, and is located in a county whose population is 700,000 or more may record an amendment to the declaration pursuant to which the master association reallocates the costs of administering the common elements of the master association among the units of the common-interest community uniformly and based upon the actual costs associated with each unit.
NRS 116.21205