N.J. Stat. § 40A:12-37
The transfer of the urban homesteading property to the applicant selected pursuant to section 6 of this act shall be made pursuant to a contract of sale and rehabilitation between the municipality and the transferee which shall provide, among other things, that (1) the property transferred shall be rehabilitated for residential use and be brought into and maintained in conformity with all applicable State and local codes; (2) the rehabilitation shall commence and be completed within the time period specified in the ordinance; and (3) representatives of the urban homesteading agency, the municipality, and, where State or federal assistance is involved, representatives of State or federal governments shall have access to the property during normal business hours for the purpose of inspecting to ensure compliance with the provisions of this section.
N.J.S. § 40A:12-37