Kaci L. Peterson

Kaci L. Peterson is a partner at Ashurst Perkins Coie in Boise, Idaho. She advises startups, emerging growth companies, established enterprises, and private equity funds on corporate matters throughout the business life cycle. Her practice includes entity formation and restructuring, commercial contracts, corporate governance, mergers and acquisitions, and exit transactions. Peterson helps clients structure important business decisions, negotiate agreements, manage legal risk, and pursue growth and liquidity objectives.

Peterson earned her J.D. cum laude from Syracuse University College of Law in 2014 and her B.A. in Political Science from California Polytechnic State University in 2008. Her legal education provided a strong foundation in corporate law, negotiation, and business planning. She is admitted to practice in Idaho and California, supporting her work with companies and investors engaged in transactions and operations across different markets.

Peterson has experience representing both buyers and sellers in mergers and acquisitions. She guides business owners through the sale process and advises private equity funds and portfolio companies on add-on acquisitions and operational matters. Her work includes transactions in the service sector, particularly HVAC, plumbing, and related trades. Before joining the firm, Peterson worked at Simpson Thacher & Bartlett LLP in Palo Alto as a staff attorney and associate.

Kaci L. Peterson was named an Up and Coming Leader in Law by the Idaho Business Review in 2021. Best Lawyers recognized her as One to Watch in leveraged buyouts and private equity law and mergers and acquisitions law for 2026. She also maintains an active pro bono practice, helping businesses and nonprofit organizations with formation, tax-exemption applications, and general corporate matters. Her work combines practical transaction guidance with a clear understanding of business goals.

Law Office Affiliations

• Partner, Ashurst Perkins Coie
• Member, Idaho State Bar

Licensed State

• Idaho
• California

Education

• Syracuse University College of Law
  Juris Doctor (JD)
• California Polytechnic State University
  Bachelor of Arts (BA)