Atty. Mark D. Samson
As a licensed veterinarian, Mark has the medical knowledge to help his clients get the results they deserve. Given his strong medical science background, Marks practice focuses on tort law, including medical negligence, product liability, and other significant personal injury cases.
Profile Summary
About Mark D. Samson at a glance
Mark D. Samson is an Of Counsel based in Phoenix, Arizona, practicing at Keller Rohrback L.L.P.. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on wrongful death, personal injury, business, class action, and product liability. Admitted to practice in Arizona (1986) and Washington, D.C (2008). Educated at Arizona State University College of Law (J.D., 1986) and Arizona State University (B.S. Bio, 1976). Recognitions include AV Preeminent. Active member of Professional and Civic Involvement Maricopa County Bar Association, Member Arizona State Bar Association, Member American Association for Justice, Member Arizona Association for Justice, Sustaining Member. Serves clients in Phoenix, AZ and the surrounding metropolitan area.
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About
- As a licensed veterinarian, Mark has the medical knowledge to help his clients get the results they deserve
- Given his strong medical science background, Marks practice focuses on tort law, including medical negligence, product liability, and other significant personal injury cases
- He has nearly 35 years of experience litigating medical malpractice cases with victories including the landmark Edwards verdict and a transfusion-associated AIDS case that remains one of the largest personal injury verdicts in Arizona history
- Mark was born in New York, but he moved to the Phoenix area in 1959 and grew up there
- He practiced from 1986 to 1995 at Meyer, Hendricks, Victor, Osborn & Maledon, becoming a member in 1992
- In 1995, Mark formed Dalton Gotto Samson & Kilgard, P.L.C. ('DGSK') and was one of the members of DGSK who formed Keller Rohrback P.L.C. in 2002
- Articles & Presentations •Personal Injury Law in Arizona, Maricopa County Association of Paralegals (2018). •The Lawyer’s Role in Meeting 21st Century Changes in Veterinary Medicine, American Veterinary Medical Law Association (2018). •Health Law - Medical Malpractice in Today’s World, Arizona Paralegal Association (2016). •Health Law and Policy, Arizona State University College of Law (2016). •From the Heart: Letting Go in Front of the Jury, Arizona Trial Lawyers Association (2015). •Medical Malpractice Seminar, Arizona Trial Lawyers Association (2013). •Trial Masters: A Look Inside the Value Options Case & Tools for Difficult Cases, Arizona Trial Lawyers Association (2011). •Comparing Veterinary and Legal Ethics, Arizona State Bar (2009). •Issues in FTCA Claims, Arizona Trial Lawyers Association (2008). •Loss of a Chance in Med Mal Cases, Arizona Trial Lawyers Association (2008). •Co-Chairman, Trial Practice - Damages, Arizona Trial Lawyers Association (2007). •Co-Chairman, Liens, Arizona Trial Lawyers Association (January 2006). •Negotiation, Blackwells 5-Minute Veterinary Manager (2006). •Chairman, Rapid Fire on Litigation Issues, Arizona Trial Lawyers Association (October 2006). •Arizona Appellate Update, Maricopa County Bar Association (2005). •Liens Again, Maricopa County Bar Association (2004). •Speaker, Changes and issues in Arizonas ethical rules for attorneys, Arizona Paralegal Association (2003). •Punitive Damages after Campbell v
- State Farm, Maricopa County Bar Association(May 2003). •Chairman, New Ethical Rules in Arizona, Arizona State Bar (October 2003). •Speaker, Application of legal principles to veterinary medicine, Arizona Veterinary Medical Association (1999-2003). •Co-Chair, Anatomy of Pain, Arizona Trial Lawyers Association (2002). •Speaker, Settlement conferences versus trial in medical malpractice cases, Arizona Paralegal Association (2002). •Chair, Seminar on Medical Malpractice in the Ages of Disclosure, Maricopa County Bar Association. •Speaker, New legal theories in medical malpractice, Arizona Trial Lawyers Association Medical Malpractice Seminar (1999). •Speaker, Use of medical literature in the courtroom, Arizona Trial Lawyers Association Medical Malpractice Seminar (1996). •Speaker, Tort and regulatory issues affecting veterinarians, National Meeting of American Veterinary Medical Law Association (1995). •Chairman, Seminar on Anatomy, Maricopa County Bar Association (1994)
- Recognitions Honors & Awards •Best Lawyers in America, Phoenix, Arizona, 2026 (Recognized since 2022): •Medical Malpractice Law - Plaintiffs •Personal Injury Litigation - Plaintiffs •Product Liability Litigation - Plaintiffs •Selected to Super Lawyers list in Super Lawyers - Southwest, 2008 - 2021
Practice Areas Explained
Mark D. Samson's Areas of Practice
Each practice area below reflects the types of cases Mark D. Samson handles, with a brief overview of what that area of law covers.
Mark D. Samson is one of 28,053 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in Arizona →
Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.
Mark D. Samson is one of 238,048 personal injury attorneys indexed nationally. Browse personal injury attorneys in Arizona →
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark D. Samson is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Arizona →
Mark D. Samson is one of 23,998 class action attorneys indexed nationally. Browse class action attorneys in Arizona →
Mark D. Samson is one of 60,257 product liability attorneys indexed nationally. Browse product liability attorneys in Arizona →
Jurisdictional Context
Why local counsel matters in Arizona
Practicing law in Arizona. Legal matters in Arizona are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Phoenix are typically filed in the local municipal court or the appropriate Arizona state district court, depending on subject matter and amount in controversy. An attorney licensed in Arizona brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Arizona courts without local counsel or pro hac vice admission.
Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.
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