If you search the location of the Utopia Circle party on Google Maps and go into Street View, you'll be at the entrance gates to Philadelphia's Navy Yard.
Matt Cohen (Levi) and James Patrick Stewart (Prosecutor) have both appeared on Supernatural (2005) in significant roles, as Young John Winchester/Michael and Dick Roman, respectively.
As Annalise is learning nobody will take the stand for Tonya, Asher quips "They'll do anything for love, but they won't do that." That is also the title of a famous rock love ballad by the artist Meatloaf.
Starting in S1E2 the title of each episode is spoken by a character in the episode. In this episode the barista, Byron, tells Michaela 'It's called the Octopus' as she interviews him for case research.