Non-Enforcement 11. The City shall be under no obligaticx = enforce any ot the provisions of this Covenant. Notice 12. Whenever provision is made for notice => 5e given to the Covenantor under this Covenant, notice shall be z22ned to have been given when delivered personally to an officer <: cirector of the Covenantor or when mailed by prepaid regisztsr¢ad maii to the registered or records office of the Covenantor <: the fourth day following the cate of mailing. Severability 13. If any section or lessor portion of this Covenant is held invalid for any reason, the invalid portion shs.+ be severed from this Covenant and the validity of the remaincs> ci the Covenant shall not be affected. Amendment and Waiver 14. No amendment or waiver of any provisicn in this Covenant shall be valid unless it is made in writing anc =xecuted on behalf of the Covenantor and the City. Schedule 15. The following Schedule is annexed tc 22¢ forms part of this Covenant: Schecule "A" Building Plan (tem | P L0$8