Martin Deinhart

238 Archbishop Flores St Ste 1008 

Hagåtña, Guam 96910

Tel: (671) 477-7857

Fax: (671) 472-4290


Mr. Deinhart has thirty-five years of experience as a lawyer in Guam, Ohio, and Arizona. Prior to spending the past eleven years at the Blair Sterling Johnson & Martinez firm he had private practices both solo and with firms in Guam, Arizona and Ohio.  He has also been a prosecutor on Guam and in Ohio.  He has counseled, litigated and practiced in a wide range of legal areas for businesses, large and small, and individuals.

His practice at BSJM includes probate and estate planning, insurance defense litigation, insurance and securities compliance and licensing business law counseling and litigation, real estate law, and creditor rights. He continues to enjoy the practice of law and the opportunity to interact with many people on a daily basis.

Community Involvement

Throughout his many years of practice, Martin has donated his time and energy, providing pro bono representation to non-profit organizations and consultation with communities on neighborhood projects. Like other members of the firm, Martin has volunteered as a coach and judge for high school mock trial competitions.

In addition to keeping busy at work, Martin enjoys being active in the outdoors. He is an avid hiker, snorkeler, and SCUBA diver.


  • Cleveland State University, Cleveland-Marshall College of Law, J.D. (1983)

  • Cleveland State University, B.A. English Literature (1979)

Bar Admissions

  • Ohio (1983)

  • Guam (1990)

  • Arizona (2004)

  • U.S. Court of Appeals, Sixth Circuit (1986)

  • U.S. Court of Appeals, Ninth Circuit (1991)

  • U.S. District Court, Northern District of Ohio (1986)

  • U.S. District Court, District Court of Guam (1991)

Professional Activities

  • Guam Bar Association Professional Ethics and Unauthorized Practice of Law Committee, Vice-Chair (2015 - Present)

  • American Bankruptcy Institute, Member (2016 - Present)