1212. Effect of tenant's notice on other notices, acts and proceedings between the parties.

A tenant's1 notice terminating the tenancy2 of any property is of no effect if given during the currency of a claim3 made in respect of the tenancy to acquire the freehold or an extended lease4 of that property5.

A landlord's6 notice terminating a tenancy of any property7 is of no effect if given or served during the currency of a claim made in respect of the tenancy to acquire the freehold or an extended lease of that property, and ceases to have effect on the making of such a claim8. If, after the landlord has commenced proceedings under Part II