Va. Code Ann. § 55-248.7.

§ 55-248.7. Terms and conditions of rental agreement; copy for tenant; accounting of rental payments.

A. A landlord and tenant may include in a rental agreement, terms and conditions not prohibited by this chapter or other rule of law, including rent, charges for late payment of rent, term of the agreement, automatic renewal of the rental agreement, requirements for notice of intent to vacate or terminate the rental agreement, and other provisions governing the rights and obligations of the parties.


http://www.dhcd.virginia.gov/HomelessnesstoHomeownership/PDFs/Landlord_Tenant_Handbook.pdf