(1) A provision in a retail premises lease is void to the extent that it has the effect of preventing or restricting the tenant from forming, joining or taking part in any activities of a tenants' association, chamber of commerce or similar body.
(2) A landlord under a retail premises lease must not treat or propose to treat a tenant who—
(a) forms or joins; or
(b) proposes to form or join—
a tenants' association, chamber of commerce or similar body less favourably
than a tenant in similar circumstances who does not do or propose to do any of
those things.
Part 9—Unconscionable conduct