Paragraph 2 Evidence of tenant's right to enfranchise

At any time after receipt of the tenant's notice the landlord may, by notice in writing given to the tenant, require him to deduce his title to the tenancy and to furnish a statutory declaration as to the particulars of occupation of the property on which the tenant relies in the tenant's notice; and the tenant shall within 21 days of the giving of the landlord's notice comply with the requirement.