Okla. Stat. tit. 60, § 60-512

Pro rata share - Exemptions.

(a) Except as provided in subsection (b) of this section the

unit owners are bound to contribute pro rata, in the percentages

computed according to Section 505 of this title, toward the expenses

of administration and of maintenance and repair of the general

commom elements and, in proper cases, of the limited common

elements, of the building and toward any other expense lawfully

agreed upon.

(b) A declarant, by specific reservation, in the declaration as

permitted by paragraph (j) of Section 514 of this title may:

1. Exempt unconstructed units within unconstructed buildings

owned by declarant from payment of its pro rata share of the

expenses described in subsection (a) of this section; and

2. Reserve the right to contribute less than its pro rata share

of such expenses for unconstructed units within a completed

building. Such expenses shall not be less than twenty percent (20%)

of such pro rata share. The cost of administration and of

maintenance, repair and insurance of any such unconstructed building

and any such unconstructed unit shall be borne solely by the

declarant until such time as such unconstructed unit and/or building

has been completed. Upon such completion of a unit or building, the

declarant's obligation for payment of the expenses described in this

section shall be governed by subsection (a) of this section.

(c) Except as provided in subsection (b) of this section, no

unit owner may exempt himself from contributing toward such expense

by waiver of the use or enjoyment of the common elements or by

abandonment of the unit belonging to him.