Jack of Hearts is the club Boobie used to make part of his street past legal, alongside real estate and a studio. The name appears in his official profile.
Another line from Boobie's profile explains the club's role in his empire: 'The club money pay for the studio, and the drug money pay for it all.' Dre'Quan books acts into the club, according to his own profile, although signing Real Dimez may end that job.
The club appears in the Extended Look among the Vice City locations, with Boobie and Dre'Quan outside it in official screenshots.