A notice of any change by a landlord or tenant in any terms or provisions of a tenancy at will shall constitute a notice to vacate the premises, and such notice of change shall be given in accordance with the terms of the rental agreement, if any, or as otherwise required by law.
Tenancy at will; effect of notice of change of terms or provisions of tenancy
Va. Code Ann. § 55.1-1225, under Chapter 12. Virginia Residential Landlord and Tenant Act..
Va. Code Ann. § 55.1-1225