In "The Gang Goes Jihad", he informs the gang that he has purchased the building next door to Paddy's Pub and gives them a notice to vacate. His reasoning is that the zoning grid says the property extends 100 feet to the north and anything south of the dividing line belongs to him. The dividing line happens to be where Paddy's Pub is and Ari tells the gang they have to be out of the pub in a week. Ari later appears at Frank's house where he tells him that he is dating Barbara. Frank and Dee steal Barbara's dog as an act of revenge. Ari shows up at Dee's apartment to get the dog back but Frank says he doesn't have it. Ari says he's starting to lose patience with all of them after already dealing with "his son (Dennis) and his retarded friends (Mac and Charlie)" and that his contractor has told him that the building has a gas leak to which Frank offers him a business proposition. Ari sells the property to Frank, which then explodes when Charlie throws a flaming bag of poop through the window.
- His wife is dead.
- He owns a Mercedes.
- Moved to Philadelphia months after buying the land next to Paddy's, when he was able to move his family.
- He is Jewish.