This Halacha is an excerpt from our Sefer
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Pesach rentals-Who has to clean the home?
A person who rents a home or apartment from another observant Jew for the duration of Pesach, then if they arrive to the rental home prior to the night of the 14th, then they are obligated to clean and check the home for Chametz. If, however, they will arrive after the start of the night of the 14th, and do not yet have access to the property as stated above [i.e. rental period, acquisition, and keys] then the landlord is obligated to clean and check the home for Chametz. If the owner of the home is a gentile or non-observant Jew who will not clean his home for Pesach, then in all cases the renter is obligated to clean and search the home upon arrival.
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