The U.S. Supreme Court could have ruled in January that an unaccepted offer of complete relief to a named plaintiff in a putative class action lawsuit moots the plaintiff’s claim. But it ruled the opposite and, some argue, effectively left most of the class action issues on the table.

Scott Pearson, a partner at Ballard Spahr LLP, explained that the nation’s highest court decided the case on “extremely narrow” grounds.

“It basically didn’t decide the key issues in the case,” said Pearson, whose practice focuses on complex business litigation and regulatory enforcement matters with an emphasis on the financial services industry. He is particularly well known for his work in lending disputes, real estate and consumer class actions.