Unless the landlord has full right to approve any sub-tenants, then the tenant could sublet to pretty much anyone. The sub-tenant could.Tenants can sublet legally in Georgia as long as their lease doesn't forbid it, and provided they follow what their lease says. Can a tenant make changes to rental property without the landlord's permission? Tenants generally can't sublet their unit without the landlord's consent. Protect your rentals with Avail lease agreements and amendments. Generally, you cannot substantially or permanently alter leased property without the landlord's permission. If a tenant sublets without your permission, it's important to take action to ensure they are adhering to the lease agreement. Check your lease for rules about subletting or "assignment". Are you legally required to allow your tenant to sublease your rental?