The dress Gloria wears is the same one Rose wears in the famous dance Marathon episode in which she does numerous front flips.
During the mock murder, the two suspects are named after Dorothy's siblings, Phil and Gloria.
Dorothy takes Rose's compact mirror and places it under Kendall's nose to see if there's breath to see if he's alive. She says she does this every morning with Sophia and if it fogs up she starts the coffee. This action by Dorothy is seen in the pilot were Sophia is sleeping in a lounge chair on the lanai. Dorothy takes a mirror out of her purse and puts it under her nose.
The name of the hotel was taken from the noir murder mystery The Maltese Falcon (1941).
The room that Blanche stays in (hotel room) looks to be the same hotel room layout that Dorothy stays in on season five episode two. Dorothy goes to New York City to see the doctor for her chronic fatigue syndrome.