Default H-GAC may, by written notice of default to the Contractor, terminate the whole or any part of the Agreement, in any one of the following circumstances:
Default by City City shall not be in default under this Agreement unless City fails to perform an obligation required of City under this Agreement within twenty (20) days after written notice by Tenant to City. If the nature of City's obligation is such that more than twenty (20) days are reasonably required for performance or cure, City shall not be in default if City commences performance within such twenty (20) day period and thereafter diligently prosecutes the same to completion. In no event may Tenant terminate this Agreement or withhold the payment of rent or other charges provided for in this Agreement as a result of City’s default.