You are required to provide access to the property, but you have rights here as well. For instance, you’re entitled to 24 to 48 hour notice (or “reasonable notice,” overall) before having to provide access for prospective buyer visits, inspections, repair work, and so on. Your landlord has to show the property at reasonable times—not late at night or 6 o’clock in the morning—and you don’t have to clean or otherwise prepare the property before it’s shown.