"Investment management services" means providing a substantial quantity of any of the following services to a partnership, S corporation, or other entity as a partner thereto:
A partner shall not be deemed to be providing investment management services under this section if the partnership interest is held directly or indirectly by a corporation, or any capital interest in the partnership, which provides the taxpayer with a right to share in partnership capital commensurate with the amount of capital contributed, determined at the time of receipt of such partnership interest, or the value of partnership interest subject to tax under section 83 of the Internal Revenue Code (26 U.S.C. s. 83), upon the receipt or vesting of such interest.
"Specified asset" means certain securities, real estate held for rental or investment, interests in partnerships, commodities, or options or derivatives contracts, except if at least 80 percent of the average fair market value of the specified assets of the partnership, S corporation, or other entity during the taxable year consists of real estate.
N.J.S. § 54:10A-6.4