N.J. Stat. § 45:15-16.67
Any purchase contract entered into by a purchaser of a timeshare interest under this act shall be voidable by the purchaser, without penalty, within seven calendar days after the receipt of the public offering statement or the execution of the purchase contract, whichever date is later. The purchase contract shall provide notice of the seven-day cancellation period, together with the name and mailing address to which any notice of cancellation shall be delivered. Notice of cancellation shall be timely if the notice is deposited with the United States Postal Service not later than midnight of the seventh day. Upon such cancellation, the developer shall refund to the purchaser all payments made by the purchaser, less the amount of any benefits actually received pursuant to the purchase contract. The refund shall be made within 30 days after the receipt of the notice of cancellation, or receipt of funds from the purchaser's cleared check, whichever occurs later. If a purchaser elects to cancel a purchase contract pursuant to this section, the purchaser may do so by hand delivering a written notice of cancellation or by mailing a notice of cancellation by certified mail, return receipt requested, to the developer, as applicable, at an address set forth in the purchase contract.
N.J.S. § 45:15-16.67