By law, the maintenance and cleaning of a dwelling is the responsibility of the tenant. If bed bugs appear during the lease, it's up to the tenant to take care of the necessary treatments. The lessor, for his part, must, before signing the lease, make available “decent accommodation that does not reveal any obvious risks that could affect physical safety or health, free from any infestation of harmful species and parasites ”- Law n°2018-1021 of November 23, 2018. It is also required to take action to eradicate bed bugs in communal areas.