A. If the dwelling unit or premises are damaged or destroyed by fire or casualty to an extent that enjoyment of the dwelling unit is substantially impaired, the tenant may do either of the following:
1. Immediately vacate the premises and notify the landlord in writing within fourteen days thereafter of his intention to terminate the rental agreement, in which case the rental agreement terminates as of the date of vacating.
B. If the rental agreement is terminated the landlord shall return all security recoverable under section 33 1321. Accounting for rent in the event of termination or apportionment is to occur as of the date the tenant vacates all or part of the dwelling unit. 331366