The lessor must issue a leave more than six months before the expiry of the lease. The leave must be given by bailiff’s writ and must contain the reasons for which it is given as well as the indication of the two-month period for contesting the leave (article L 145-9 of the Commercial Code).
leave with renewal offer
the leave is intended to fix the new rent
leave at the end of eviction or resumption
the leave is intended to obtain the departure of the lessee.
In the absence of leave, the lease is tacitly renewed for an indefinite period.