Thereafter, if the owner of an historic site or landmark or contributing building, structure, site or object within the Historic District does not comply with the findings of the hearing officer and Township Committee within 90 days, or such other time frame as determined appropriate by Zoning Officer, the Township may enter into the premises and, by use of Township labor or outside contractors or both, perform such work as is necessary to abate the violations to the extent necessary to stabilize the historic site or landmark or contributing building, structure, site or object within the Historic District in order to prevent same from further deterioration. Nothing herein shall obligate the Township to completely repair or renovate any structure not owned by the Township.