59(3)If the council varies the resolution or agreement entered into under subsection (1) or enters into a new agreement, the council shall give notice of the variation of the resolution or agreement or of the new agreement in accordance with section 111, which applies with the necessary modifications, and the variation of the resolution or agreement or the new agreement shall not become effective until a certified copy of it and, if necessary, a certified copy of the by-law amending or replacing the by-law referred to in subsection (2) are filed in the land registration office.