As two of Dallas’ most cherished teams square off against one another in a conflict characterized by ambition, pride, and the precarious balance of shared ownership, the Mavs Stars lawsuit reads like a high-stakes drama. After sharing the American Airlines Center since 2001, the Dallas Mavericks and Dallas Stars are now facing off in a legal dispute that could fundamentally alter how sports partnerships operate in the US.
The lawsuit started when billionaire Miriam Adelson and her son-in-law Patrick Dumont, the Mavericks’ new majority owners, accused the Dallas Stars of breaching their joint lease agreements and obstructing necessary arena upgrades. Their case is especially simple: the Stars allegedly disregarded talks about renovations, resisted upgrades required to update the facility, and violated a deal that required both teams to keep their Dallas headquarters until 2031. They see the conflict as one of advancement and vision rather than ego.
The Stars’ response could not be more different. Their counterclaim accuses the Mavericks of attempting what they describe as “a hostile takeover” of the shared arena, painting the NBA franchise as an aggressor aiming to seize full control of operations. By citing the millions spent on earlier renovations and continuous efforts to uphold the arena’s standards, they contend that their organization has long operated in good faith. Their proud yet defensive tone reflects a franchise that is unwilling to give up its ownership of the city’s top venue.
The lawsuit highlights the growing tension between legacy and expansion. When Adelson and Dumont acquired their 69% stake in the Mavericks in 2023, they didn’t just inherit a basketball team — they inherited a business empire in transition. Dumont’s vision was remarkably similar to the grand entertainment districts of Nevada, where gaming, hospitality, and sports are all intertwined. This was influenced by his experience as President and COO of Las Vegas Sands Corp. Modernization was necessary to fulfill his vision of a “integrated entertainment experience” for Dallas, but as it turns out, there are obstacles to modernization.
Dallas Mavericks & Dallas Stars — Legal and Ownership Profile
| Category | Details |
|---|---|
| Teams | Dallas Mavericks (NBA) & Dallas Stars (NHL) |
| Arena | American Airlines Center, Dallas, Texas |
| Arena Ownership Entity | Center Operating Company (COC) |
| Lease Expiration | 2031 |
| Estimated Arena Value | $3.5 billion including surrounding property |
| Mavericks Ownership | Dallas Sports Group — Miriam Adelson & Patrick Dumont (69% majority stake acquired in 2023) |
| Stars Ownership | Tom Gaglardi (Owner since 2011) |
| Core Legal Dispute | Lease obligations, renovation funding, and operational control |
| Filed In | Texas Business Court, Dallas |
| Legal Standing | Both teams accuse each other of breach of contract |
| Authentic Reference | CBS News Texas – https://www.cbsnews.com/texas/local-news/dallas-mavericks-stars-lawsuit |

Tom Gaglardi, the owner of the Stars, has led his team with a notably conservative but community-focused strategy. He has placed a strong emphasis on tradition, loyalty, and incremental investment ever since acquiring the team in 2011. For Gaglardi, moving portions of the team’s operations to Frisco wasn’t an act of rebellion — it was a strategic decision to support growth and training infrastructure. But for the Mavericks, that relocation symbolized a broken promise and a violation of civic trust.
They both say they are fighting for the city. The Mavericks insist that without upgrades, Dallas risks falling behind competing markets like San Francisco or Milwaukee, where state-of-the-art arenas double as entertainment hubs. The Stars argue that careless growth might turn off supporters and jeopardize a collaboration that has supported 20 years of mutual success. Both viewpoints have merit, which is exactly why the case is so divisive—two valid ideas about Dallas’ future clashing in court.
The lawsuit is referred to as a “case study in modern sports ownership” by legal experts. Dallas uses a dual management model, in contrast to places like Boston’s TD Garden, where the Bruins and arena are owned by the same organization, or Madison Square Garden, where the Knicks and Rangers are owned by a single corporate entity. Even though it was designed collaboratively, this structure has shown itself to be particularly brittle when competing strategies, economics, and egos collide.
The stakes go far beyond maintenance budgets. The right to influence Dallas’ sports identity’s narrative is in question. Supported by Dumont’s drive and Adelson’s enormous wealth, the Mavericks see the arena developing into a hub for entertainment in the future, perhaps with casino-driven growth at its core if Texas ever legalizes gaming. The Stars, on the other hand, seek to preserve stability, keeping hockey intertwined with the city’s traditional sports culture.
Mark Cuban, who still owns a minority stake in the Mavericks (27%), has been unusually silent during the proceedings. Those close to him describe a man caught between two ideals — innovation and harmony. Although his reputation as a progressive thinker fits with Dumont’s philosophy, the conflict becomes emotionally complex due to his strong ties to Dallas’ sports heritage. Eventually, Cuban’s influence might act as a link between two strong ownership ideologies, but the gap might already be too great for dialogue.
City officials, meanwhile, are watching anxiously. Dallas City Manager Kimberly Bizor Tolbert has publicly encouraged both organizations to remain committed to the city, emphasizing how their partnership has long anchored local tourism and community pride. Her message carries an undertone of urgency — if this legal dispute deepens, it could threaten the financial ecosystem that keeps downtown Dallas thriving.
There is a nuanced yet moving tale about contemporary sports economics hidden behind the court documents. Franchises are now global brands, content empires, and real estate investors in addition to being athletic institutions. Once just an arena, the American Airlines Center now houses a $3.5 billion ecosystem. And even the strongest alliances can break down when so much pride, identity, and capital are combined in one structure.
The Mavs Stars lawsuit runs the risk of alienating fans the longer it goes on, according to observers. Some people express disillusionment on social media, claiming that boardroom politics are overshadowing their loyalty. Others see the lawsuit as a necessary evolution — a reckoning that will ultimately bring transparency and modernization to Dallas sports management.
Still, the case carries a broader lesson about ambition and collaboration. Although both teams want to maintain Dallas as the hub of American sports, their approaches are very different. It serves as a reminder that alignment in both performance and philosophy is necessary for success, especially in an era of multibillion-dollar franchises.

