Has the break notice been validly exercised by the tenant? The extent to which a pre-condition to the exercise of a break clause will affect the validity of a break notice depends on whether they are absolute or qualified (eg reasonable, material or substantial). If conditions are not fulfilled, the break clause may not operate and the lease could then continue for the remainder of the term or at least until the next break date. However, although not binding on landlords, note that the Code of Practice for Leasing Business Premises in England and Wales 2007 states that the only pre-conditions to tenants exercising any break clauses should be that they are up to date with the main rent, give up occupation and leave behind no continuing subleases/underleases and that disputes about the state of the premises, or what has been left behind or removed, should be settled later