@caseycolvin Good question. The Leases & Tenants feature is implemented as a single moment in time, not a full historical record. As such, it currently only accommodates existing lease information. When a tenant moves out, you’ll want to update the row with the new tenant’s information or simply delete the existing data to show the unit as vacant.
See the Wishlist for a discussion regarding the desire to track historical lease data:
Tracking historical changes via the rent roll