Perot holds a 5 percent stake in the team, and he sued Cuban a year ago claiming that the team was so badly managed it should be put in receivership.
Cuban's attorneys fired back Wednesday, telling a judge that the Mavericks' first NBA title proves that Perot's arguments should be tossed out. The four-page court filing labels the team as the "World Champion Dallas Mavericks" and includes a photograph of Dirk Nowitzki hoisting the championship trophy.
It also says the Mavericks should be awarded any relief they are due "although they are quite content at the moment."
Perot spokesman Eddie Reeves says Perot is "delighted" by the title but the business issues remain.
