( August 4, 2026, 2:00 PM EDT) -- NEW YORK — Law firms that routinely accept leadership responsibilities in multidistrict litigations filed an amicus curiae brief in support of Keller Postman LLC and Ashley C. Keller, telling the Second Circuit U.S. Court of Appeals that it should reverse sanctions leveled against the firm and its senior partner, who serves as plaintiffs’ co-lead counsel in the acetaminophen autism spectrum disorder-attention deficit hyperactivity disorder (ASD-ADHD) multidistrict litigation, for failing to comply with a protective order....