The title of the episode is a pun on Reality Bites, a 1994 American romantic comedy-drama film, and the word "realty", commonly used in America and Canada to refer to the real property.
The song made to help Marge memorize the Real Estate Law is also to the tune of "Camptown Races". In this version, the United States government-sponsored enterprise Fannie Mae is mentioned.
While taking the exam, Marge hums "Swanee River", also by Stephen Foster.
The Murder House is based on the Bates' house from the 1960 horror film Psycho.
When trying to kill Homer to get his car to a stop, Snake uses piano wire from the Acme Corporation, the fictional company originating in Looney Tunes.
Before being attacked by Snake, Homer was singing Suzanne Vega's 1987 famous hit "Luka".
The murder house is modeled after the Bates home in Alfred Hitchcock's movie Psycho.
The number on Snake's prison uniform is "7F20", this is the production code for the episode "The War of the Simpsons" which was the episode Snake first appeared in.
The number on Johnny D's prison uniform is "5F06", the production code for this episode.
The house that Lionel Hutz says is on fire is actually not on fire.
In the 'dog house', in the doorway there are dogs staring out of the open door. The dogs do not have bodies.
In one scene at Red Blazer Realty, it shows Marge from the behind. In that shot, she is not wearing her blazer, however in the previous and next shot she is.
When Marge finishes spinning upon receiving her blazer, Gil and Nick Callahan have their colors switched.
When Marge Googles herself in "Marge Gamer", one of the results is "Marge Simpson - Springfield Realty. License: Expired. Properties Sold: 0. Properties Listed: 1. Fellow employees: Cookie Kwan, "Boo-Yah!" Guy."