Attorney Mason Simpson

Mason Simpson

Litigation and Real Estate

Call: (303) 688-0944

900 Castleton Rd
Suite 200
Castle Rock, CO 80109-3307

Schedule Online

“A nuanced and sophisticated approach to dispute resolution cannot be overvalued when it sends a clear message of intelligence, power and commitment.”

Education & Bar Admissions

  • Juris Doctor, cum laude – St. John’s University School of Law, 2002
  • Bachelor of Arts, English – 1993
  • Bar Admissions: Colorado Bar, 2016 (year admitted), New York Bar, 2003 (year admitted), District of Columbia Bar 2004 (year admitted), United States Supreme Court, 2014 (year admitted)

Publication & Speaking Events

“A Bermuda Triangle in Insurance Choice of Law,” Corporate Counsel Magazine, June 2013

Professional Associations

  • Admitted to practice law by the Colorado Supreme Court, the New York Court Supreme Court, Appellate Division, First Department, the Second Circuit Court of Appeals, the Southern, Eastern, Western, Northern Districts of New York and the District of Columbia
  • Colorado Bar Association
  • New York Bar Association
  • Federal Bar Council American Inn of Court


Mason Simpson is a litigation attorney in the Real Estate division of Robinson & Henry. Throughout the course of his 15-year career, Mason has specialized in a wide range of highly complex commercial litigation matters. He has successfully prosecuted and defended claims across a variety of industries and sectors, including real estate, insurance, re-insurance, securities, commodities, private equity, media, accountancy, advertising, banking, information technology, gaming, real estate and transportation.

After a successful career at three large Manhattan law firms and a federal clerkship in the Southern District of New York, Mason returned to Colorado to be closer to his family and the Rocky Mountains where he grew up loving the Colorado climate and its amazing outdoor offerings. Prior to attending law school in New York City, Mason was a stage electrician and lighting engineer for some of the greatest theatrical and musical venues in the world, including Madison Square Garden, Radio City Music Hall, Carnegie Hall and Lincoln Center.

When away from the courtroom and office, Mason enjoys spending time with his wife and two school-aged children. He an avid music fan of nearly every genre and plays electric and acoustic guitar, banjo and mandolin.