“The serving of a bad or defective notice has produced a wealth of litigation over the years. The fact that no-one has been misled, confused or in any way disadvantaged has never deterred those who want to take the point, particularly where the stakes are high. And, they are usually not higher where commercial leases are concerned and the tenant wants to break the lease. Where there may be grotesquely disproportionate and serious consequences for the party (or its adviser) who gets it wrong, a range of different responses has evolved in order for the courts to produce a more just outcome.”
Hardwicke Chambers, 4th November 2013
Source: www.hardwicke.co.uk