Sometimes there's only two options; win or lose. For Agit, Godfather of the Chicago-based Calvini family, it was lose.
He got killed after a conspiracy between his own members who decided it was their time to take over. Besides Agit, another Bruglione named Sebin got killed by the new bosses too, and that seemed the end of Calvini, as it was renamed to Invincible.

Admins on the other hand, happened to already be on the tail of these two, and luckily had just found proof that the two main conspirators were scripting. They were immediately adminkilled and since there were no other successors set, the Invincible family came to an abrupt end.

Agit was revived, and the money to re-buy the headquarters was refunded to him. But for that little time he was dead, New York's Venture saw an opportunity to expand to Chicago, without being aware of the possible reincarnation of Agit and his family, and purchased the 100 member headquarters, naming it Ventur.

After some behind the scenes talking, it seems to have been talked out between Calvini and Ventura, and from what is being said, the Chicago headquarters will be handed back to the Calvinis shortly.