No historic residence, or historic commercial structure, maintained or rehabilitated may benefit from the provisions of this chapter unless the owner of the historic residence, or historic commercial structure, grants a restrictive covenant to the commission, agreeing that the historic residence, or historic commercial structure, shall retain its use and be maintained in a manner which preserves the historic character of the historic residence or historic commercial structure's rehabilitated portions historic character for a period equal to the length of the property tax reduction or until title to the property is transferred.
R.I. Gen. Laws § 44-4.1-5