The latest chapter in the 20-year dispute over a painting currently in the collection of a Madrid museum suggests the case may head back to a California appeals court

Libra Max previously sued to end Barbara Lissner’s guardianship of her father; now Lissner has sued back, alleging that Libra Max’s legal and public relations campaign defamed her

Lawyers for the auction house are trying to dismiss the complaint, which they call 'devoid of factual allegations,' but they could be facing a classic Catch-22.

This booming but unregulated market is under scrutiny in the US and UK, but legislation is lagging behind innovation

The foundation claims publisher Michael McKenzie “made a mockery of the discovery process” and “repeatedly thumbed his nose” at the court

Michael Hayden has sued the artist for copyright infringement in latest legal battle

The decades-long dispute between the heirs of a Jewish woman who fled Nazi Germany and the Thyssen-Bornemisza Collection Foundation is embroiled in procedural questions about foreign sovereigns’ liabilities in US courts

In 1937 the work, which had belonged to art historian Sophie Küppers, was seized by Nazi authorities and eventually sold to New York collector A. E. Gallatin

A lawyer for the foundation says a review by the Supreme Court of a lower court’s decision would “reaffirm the importance of free artistic expression”

Attorney general claims the auction house created and used tax exemption certificates that falsely presented the buyer as an art dealer in order to dodge payments. Sotheby's says it will continue to contest the case

As a US court issues a decision on the dispute between the Andy Warhol Foundation and photographer Lynn Goldsmith, two lawyers explore past case studies in this legally controversial area

US Treasury Department issues a call for input on forthcoming regulation that aims to counter money laundering

The boutique firm will continue to work from the same offices, but wants to take on riskier contingency cases

Founded by gallerists and lawyers, the venture will provide estate-planning advice—for a fee—to artists and their families

Russian art collector had sued for double dealing and will now appeal decision, while Bouvier plans to launch $1bn countersuit for damages—and write a tell-all book

So far a total of 475 "art market participants" have been registered—but delays mean more are likely to comply in the coming months

A string of court cases have allowed states to claim sovereign immunity when they have used images without permission, giving copyright holders cause for concern and few options for remedy

From face-matching software to watching out for shifty behaviour, here is how you can protect yourself from fraudsters attempting to buy art under a false identity

Lawyers and collectors weigh in on new rule that sets a 30-year limit on claims to property that was stolen by Nazis and Communist leaders

The New York-based gallery sued after US authorities seized a bust of Alexander the Great in 2018. The sculpture's ownership and future remains unresolved

Photographer Lynn Goldsmith says recent Supreme Court ruling on Google supports previous decision that went against the Pop artist's foundation

Businessman behind the Museu Coleção Berardo in Lisbon, one of Portugal's most visited museums, allegedly owes nearly €1bn

In a long-running legal battle, the Shchukin Gallery seeks the return of five paintings worth $63m that the gallery says were taken by a Russian financier

New licensing regulations for cultural property may hamper metal detectorists' ability to sell legitimate finds on the European market

Dispute with Artemus centred on a multimillion-dollar leaseback arrangement involving Keith Haring and Frank Stella works

With interest in non-fungible tokens growing fast, the legal questions are testing the experts

Decision appears to signal that appropriation artists may have to proceed more cautiously

The UK government may make examples of galleries, advisors and auction houses found failing to comply to new laws, so prepare your business with these steps

A 1993 painting of the state’s historic role on the Underground Railroad depicts Black slaves as caricatures, while white abolitionists are idealised

Plus, the story of a notorious forger and artist Collier Schorr on August Sander