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Mr. Johnson (who goes by Mars) was born in Koror, Palau and raised in Guam.  He earned his B.A. in Sociology and Anthropology from Carleton College in 2004 and his law degree from the William S. Richardson School of Law, University of Hawai'i, in 2008. As a law student, Mr. Johnson served two terms as President of the William S. Richardson School of Law Student Bar Association. He also served as a Director of the William S. Richardson School of Law Alumni Association from 2009 until 2012.  He joined Blair Sterling Johnson & Martinez in 2013.  


Mr. Johnson works primarily in civil litigation, with a specific emphasis in corporate law, insurance defense, and government procurement.  


Prior to joining the firm, Mr. Johnson practiced in Hawai'i at Kessner Umebayashi Bain & Matsunaga and Hughes Richards & Associates, where he gathered valuable experience in the areas of employment law, construction defects, medical malpractice defense, personal injury defense, and workers' compensation defense.  

Published Cases



  • Raymond Kim v. International Business Machines, No. 21719 (Haw. App. 2011)

Administrative Decisions

Procurement Appeals

  • In the Appeal of Mid Pac Far East, OPA-PA-15-011 (Office of the Public Auditor Dec. 31, 2015)
  • In the Appeal of IP&E Holdings, OPA-PA-15-006 (Office of the Public Auditor Sep. 18, 2015)
  • In the Appeal of IP&E Holdings, OPA-PA-14-008 (Office of the Public Auditor Nov. 26, 2013)

Community Involvement

Mr. Johnson is a member of the Guam Chamber of Commerce's Guam Young Professionals where he is chair of its "Be Influential" committee, which organizes its mentorship and legislative involvement programs.  Mr. Johnson is also the high school mock trial coach for St. John's School.  

He is a past Director of the Palauan Community Association of Guam and past Vice President of the Ngaraard Club of Guam.  

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  • University of Hawai'i, William S. Richardson School of Law, J.D. (2008)

  • Carleton College, B.A. Sociology & Anthropology (2004)

Bar Admissions

  • Hawai'i (2008)

  • Guam (2013)

  • Northern Mariana Islands (2013) 

  • U.S. District Court, District of Hawaii (2008)

  • U.S. District Court, District Court of Guam (2013)

  • U.S. District Court for the Northern Mariana Islands (2013)

Professional Activities

  • Guam Bar Association Continuing Legal Education Committee, Chairperson (2015 - 2017)
  • Guam Bar Association Legal Aid and Lawyer Referrals Committee, Member (2015 - 2017)


  • Palauan

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