Kind of. Here in California (can't speak to the rest of the country), you have a "right to quiet enjoyment" of your rental property, which has been specified to

Kind of. Here in California (can't speak to the rest of the country), you have a "right to quiet enjoyment" of your rental property, which has been specified to specifically allow guests within "reasonable" limits. I can't find any case law specifically around day guests (most of the discussion surrounds how long a multi-night guest can stay), but prohibiting guests outright is definitely illegal. All in all, it's safe to say a moderate sized get-together, that doesn't violate the fire code occupancy limits nor make excess noise for the time of day, would be very difficult for a landlord to evict you over.