Mark was born in Dallas, Texas on July 3, 1949 and grew up in Boston, Massachusetts. He received his Bachelor of Arts degree from Baldwin-Wallace College in 1971 and his Juris Doctorate from the University of Toledo in 1975. That same year he was admitted to the New Hampshire bar. Following graduation from law school, Mark served as a law clerk to the judges of the New Hampshire Superior Court and prosecuted cases as an Assistant County Attorney in Hillsborough County before entering private practice in 1977. He is admitted to practice before the State and Federal courts of New Hampshire, as well as the United States Court of Appeals for the First Circuit. He is a partner and founding member of Abramson, Brown & Dugan.

Mark is a fellow of the prestigious American College of Trial Lawyers.  He has been repeatedly voted by his peers as one of New Hampshire's Top Attorneys in surveys published in New Hampshire Magazine. Since 1994, Mark has been recognized as one of the Best Lawyers in America, by Woodward and White, a peer-reviewed publication, for his work in personal injury litigation. He has also been recognized as one of the Law Dragon 500 Top Attorneys  by Law Dragon Magazine, and he has an ‘AV’ rating, the highest rating available, in Martindale-Hubbell Law Directory, a publication which independently rates lawyers on the basis of their peers' opinions. In 2007, Mark was named as one of New England’s Super Lawyers  and was recognized by BestofUS.com for excellence in Medical Malpractice in the State of NH. Mark has been a frequent guest on WMUR television's "Ask the Expert" series and he has appeared on The Connie Chung Show and HBO Real Sports with Bryant Gumbel.

Mark was elected to the Board of Governors of the New Hampshire Association for Justice formerly known as the New Hampshire Trial Lawyers Association in 1984 and again in 1997. He has served on several committees for the New Hampshire Bar Association, including the Ethics Committee and the Medical Malpractice Subcommittee, and was a member of the Civil Justice Advisory Committee of the United States District Court for the District of New Hampshire. Recently, he was chosen as the Chairman of the United States District Court Merit Selection Committee for the Reappointment of the United States Magistrate Judge. Mark is a Sustaining Member of the American Association for Justice formerly known as the  Association of Trial Lawyers of America, and he is actively involved in the Association's Birth Trauma Litigation Group. He is also a member of the American Bar Association and the Manchester (NH) Bar Association.

Mark has co-authored numerous journal articles addressing varied areas of New Hampshire law including: “Using the Internet Effectively in Medical Malpractice Cases” 29 TBN 121 (Summer 2007); “Medicaid Lien Repayment in Medical Malpractice Cases After Arkansas Department of Health and Human Services v. Ahlborn,” 29 TBN 5 (Winter 2007); “Desclos v. Southern New Hampshire Medical Center: Personal Injury and Medical Malpractice Victims Receive New Protections Against Oppressive Discovery Tactics,” 28 TBN 106 (Indian Summer 2006); “Pure Referral Fees: Insuring Client Confidence in Complex Personal Injury and Medical Malpractice Cases,” 28 TBN 106 (Spring 2006); “Medicaid Liens and Medicare Liens in New Hampshire Personal Injury and Medical Malpractice Litigation,” 28 TBN 5 (Winter 2006); “Dispelling the Myths of the Medical Malpractice Crisis and Vindicating the Victims of Medical Malpractice Through Attorney Conducted Voir Dire,” 27 TBN 157 (Fall 2005); “New Hampshire’s Medical Malpractice Screening Panel Statute: Constitutional Considerations,” 27 TBN 102 (Summer 2005); “Protecting Privilege and Precluding Bad Doctors from the “Bad Genes” Defense: The Non-Discoverable Nature of Medical Records of Related Third Parties in Medical Malpractice Cases,” 27 TBN 61 (Spring 2005); “The Current Status of Loss of Opportunity Claims in Medical Malpractice Litigation,” 27 TBN 37 (Winter 2005); “The New Expert Reliability and Expert Disclosure Rules:  What Does RSA 516:29 Require and is it Constitutional?,” 26 TBN 166 (Fall 2004); “Vicarious Liability in Action: Holding a Hospital Liable for the Malpractice of its Independent Anesthesiology Group,” 26 TBN 110 (Summer 2004); “Apportioning Fault to Settling Defendants Under Nilsson v. Bierman: Constitutional Considerations,” 26 TBN 87 (Spring 2004); "Holding Hospitals Liable for the Malpractice of Independent Contractor Physicians," 26 TBN 162 (Fall, 2003); "Res Ipsa Loquitur and Medical Malpractice," 26 TBN 114 (Summer, 2003); "HMO Liability IV: Protecting the Patient and Preserving States' Rights," 25 TBN 64 (Spring 2003); "Discovery in New Hampshire's Federal District Court: Play By The Rules Or Else," 25 TBN 16 (Winter, 2003); "The New Amendment to New Hampshire's Quality Assurance Privileges: Ensuring Substantially Broader Access to Factual Information in Medical Negligence Cases," 24 TBN 178 (Fall, 2002); "Temporary Employees and the Borrowed Servant Rule: A Case Study," 24 TBN 115 (Summer, 2002); "Recent Developments in New Hampshire Medical Malpractice Law," 24 TBN 8 (Winter, 2002); "Overcoming the Quality Assurance Privilege in New Hampshire Medical Malpractice Claims," 23 TBN 172 (Fall, 2001); "Handling the Failure to Diagnose Breast Cancer Malpractice Case," 23 TBN 65 (Spring, 2001); "Birth Injury and Cerebral Palsy Malpractice Claims," 23 TBN 13 (Winter, 2001); "Sidestepping the Repeal of Joint and Several Liability - A Case Study," TBN (Summer, 2000); "Damages for Loss of Enjoyment of Life in Personal Injury Cases," 22 TBN 35 (Winter, 2000); "Parental Consortium in Non-Death Cases," 21 TBN 161 (Fall, 1999); "Minimizing Liens and Maximizing Personal Injury Recoveries," 21 TBN 107 (Summer, 1999); "HMO Liability Part III: Return of the Plaintiffs," 21 TBN 67 (Spring, 1999); "Medical Malpractice and the American Jury" (Book Review), New Hampshire Bar News at 10 (July 15, 1998); "Negligent Infliction of Emotional Distress in Medical Negligence Cases," 20 TBN 66 (Spring, 1998); "Discovery Abuse Part II: Baseless Assertion of Privileges," 20 TBN 4 (Winter, 1998); "Discovery Abuse in New Hampshire: What Happens When the Honor System Fails," 20 TBN 80 (Fall, 1997); "HMO Liability: Building Corporate Profits at the Expense of Patient Care," 19 TBN 144 (Winter, 1997); "HMO Liability Part II: ERISA Preemption... And the Saga of Corporate Greed Continues," 19 TBN 44 (Summer, 1997); "The Law of Nursing Malpractice," 18 TBN 7 (Spring, 1996); "White Collar Crime: The Rising Tide of Sexual Misconduct and the Clergy," 15 TBN 64 (Winter, 1993); "White Collar Crime: Causes of Action Recognized Under New Hampshire Law Applicable to Clerical Sexual Abuse," 16 TBN 6 (Spring, 1994); "Shall We 'Prey': Liability for Clergy Malpractice in Cases of Sexual Misconduct," 35 NHBJ 59 (June, 1994).

Mark has also served as a faculty member on numerous continuing legal education seminars including, Mediation Skills for Judges (NH Superior Court Judicial Retreat); Representing Clients in Civil Mediation (NHBA); 17th Annual Conference of the Brain Injury Association of New Hampshire; Trial Lawyers Workhorse Seminar (NHTLA); Personal Injury Cases Involving Minors (NHBA); Medical Malpractice and Nurses (NHTLA); Personal Injury Law Symposium (NHBA); Sexual Misconduct ... The Rights of Victims (Nashua Bar Association); Federal Practice Update (NHBA); New Hampshire Automobile Insurance Law (NHBA); and Medical and Legal Claims (NHBA).

Mark's thirty-two years of practicing law have been devoted to representing plaintiffs in medical malpractice and personal injury cases.