The Lake House purchased by Jane is the same house used to film the Geico woodchuck commercial.
The alley at the beginning of this episode is the same alley used for closing scene of the series finale of Southland.
The trick that Patrick Jane sticks a chewgum on lightbulb, is done by Cal Lightman in the series "Lie to Me" ,season one episode 3. The two series have similarities in screen and the way their heroes solving cases.
One of the books' name that Lazarus has in his bookshelf is "Operation Valkyrie", he has also an owl figurine in his bookshelf.