N.J. Stat. § 46:8B-36
There is hereby established a rebuttable presumption of unconscionability with respect to provisions of master deeds or association bylaws recorded prior to the effective date of this act which shall arise whenever such a master deed or by laws shall contain any provision or clause affording the developer or the association a right of first refusal to buy a condominium unit upon resale, gift or devise by the condominium unit owner. Such presumption may be rebutted by the developer or the association by the presentation of evidence of the existence of facts and circumstances sufficient to justify and validate a provision of the master deed or the bylaws which would otherwise appear to be unconscionable under the provisions of this section.
N.J.S. § 46:8B-36