Publications Memos Go Back Lori Lesser Honored in “45 Under 45” List by American Lawyer 01.27.11 Authors and Contacts Lori Lesser Partner [email protected] +1-212-455-3393 Related Insights 01.20.26 | Publications Revised HSR Act Thresholds and Increased Filing Fees 01.20.26 | Publications Fifth Circuit Rules That Soroban Was Incorrectly Decided and SECA Tax Exception Applies to Limited Partners With Limited Liability Regardless of Activities 01.15.26 | Publications Simpson Thacher Sustainability and ESG: Regulatory Update – January 2026