How to define "Occupant"

[John Woodriff]

I seem to have a reoccurring problem with tenants in a basement apartment moving in, and their partner lives with them a majority of the time. How does one define "Occupant"? I use a month to month rental agreement, and am not looking to turn over the apartment frequently, so this maybe I should ignore this until it becomes an issue to me. I live in Virginia.

1. Number of Occupants. The demised premises shall not be occupied by more than 1 adults and 0 children under the age of ????? years, without the written consent of Landlord.

Suggestions/ Comments welcome.