Twelve works from the late dealer's private holdings will be auctioned during May's marquee sales in New York.

These envelope-pushing works seemed designed to create scandal—and that was sometimes the point.

Notable cases this year included the Andy Warhol Foundation, MoMA, Richard Prince, Sotheby's, and Dmitry Rybolovlev.

His fans included Richard Prince, who once curated a show of his art.

Fifteen works failed to sell.

Winston Art Group cataloged Schiff's holdings, a task that reportedly spanned 900 hours over eight months and uncovered over 1,000 works.

Lynthia Edwards has filed a counterclaim against Deborah Roberts' lawsuit, alleging that Roberts has been using social media to defame her and her gallery.

Blum & Poe and Gagosian have been ordered to pay damages to the plaintiffs.

Much of the case will continue to be fought in court.

The judge ruled that Prince's artworks "indeed tested the boundary between appropriation art and copyright infringement."