Mark M. McCulloch


Well-Traveled Insightful Litigator

Mark has tried cases in more than 50% of the counties in Oregon as well as five other states. He is an experienced, well-traveled litigator who uses his invaluable insights to help solve all types of legal disputes with intelligence, integrity, and civility.
His practice focuses on complicated and significant financial disputes, including civil litigation, professional malpractice, personal injury, large asset non-custody divorce proceedings, estate administration including conservatorships, guardianships, trusts, probates and estate planning disputes. Mark is an exceptional communicator who quickly understands the essence of his clients' needs. He works on cases from beginning to end, including through appeal if necessary, which allows him to take what he learns and apply it to other cases.
Legal disputes are stressful, but Mark makes his clients feel comfortable and respected while he fights for them.  He is mindful of doing what is in the best interests of his clients, whether that is considering settlement options or taking a case through trial. Mark believes in being fair and respectful to all parties at all times, and has often been referred cases by opposing counsel who appreciate his professionalism.

Mark is the President and board member of the Multnomah County Law Library, and he is a counselor and board member of William Temple House, a regional provider of emergency social services.

Little Known Facts:  Likes to visit courthouses when traveling | From a family of lawyers | Has been known to stop in and watch a trial in other states and countries | An avid outdoorsman who loves to fly fish, hike, golf and cycle in Montana | Marble champion of Klamath Falls, Oregon in 6th grade, winning a trip to the state tournament in Portland where he was awarded the largest trophy (for travelling the greatest distance)


Martindale-Hubbell AV® Preeminent™ 5.0 out of 5 Peer Review Rated

Selected by his peers for inclusion in the Best Lawyers in America® 2018-2024 for Legal Malpractice Law–Plaintiffs

Named a Best Lawyer® 2020 “Lawyer of the Year” in Portland, Oregon, for Legal Malpractice Law–Plaintiffs See more News See more Articles Print Bio

Representative Matters

Civil Litigation, Business Disputes

Successfully defended client in a $2 million breach of contract suit – case was dismissed and client was awarded more than $300,000 in attorney fees 

Successfully defended client in a real estate transaction lawsuit – trial court agreed the lawsuit should never have been filed and awarded client over $300,000 in attorney fees as sanctions 

Successfully defended a two-year litigation requesting the imposition of a conservatorship over a wealthy elderly person 

Obtained a judgment after trial of an elder abuse case exceeding $700,000 including attorney fees, and nullified estate plan obtained by undue influence
Professional Malpractice

Successfully settled substantial accounting, legal and medical malpractice matters, some involving well over $1 million in recoveries for clients

Received jury verdict for approximately $1 million in business legal malpractice lawsuit, and settled medical malpractice claim for $1.3 million

Personal Injury

Resolved several sizable personal injury matters each year – by trial, mediation, arbitration, and negotiation

Large Asset Non-Custody Divorce

Resolved several divorce disputes annually involving significant support issues and valuation of assets ranging from real estate to businesses 

Estate and Trust Disputes

Regularly represent clients in estate planning disputes, including probate and trust litigation, will contests, family disputes with significant assets and appointment of guardianships and conservators
Successfully represented client in elder abuse case and was able to protect client’s financial assets 

Speaking Engagements

Panel member forcasting the impact of the case of Alfieri v. Solomon (358 or 383 (2015)), presented to the Multnomah County Bar Association Litigation Section


University of Oregon School of Law (J.D. 1967)
University of Oregon Honors College (B.A. History, 1964)


Oregon State Bar


National Trial Lawyers – Top 100 Trial Lawyers
Multnomah Bar Association

News & Events



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