I imagine the new tenancy agreements will spell it out.
Owner = lessor
Tenant = Tenant
Agent = Agent.
The agreement will remain between you the tennant and the owner/lessor with the agent remaining just an agent to the transaction.
The old one even defines simple terms like...
Difficult to insure against breaking the law in my experience... It is possible that this even opens up avenues to insurers to knock back some claims around loss of rent if the nexus of the loss was you breaking the law at first instance. i.e. it is more than just the fine you might not be...