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Member Profile: Jonathan B. Marks

design element Jonathan B. Marks
Marks ADR, LLC
4833 Rugby Avenue, Suite 301
Bethesda, MD 20814
Email: Click for email

Tel: (301) 907-4712
Fax: (301) 907-4719

MD Chapter:

Jonathan B. Marks regularly travels out of state to District of Columbia, Illinois, New York

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ADR Services Include:

Mediation; Arbitration; Early Neutral Evaluation; Med-Arb; Facilitation & Systems Design; Discovery Referee; Mini-Trial Judge; Special Master; Insurance Umpire


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Jonathan B. Marks has substantive case experience in the following areas...

design elementADA Disability
design elementAdmiralty
design elementAnti-Trust
design elementAppellate
design elementAutomotive
design elementAviation
design elementBanking & Finance
design elementCommercial/Business
design elementCondominiums
design elementConstruction
design elementConsumer Fraud
design elementContract Disputes
design elementCross Cultural
design elementDebt Collections
design elementEducation
design elementEmployment
design elementEnergy Sector (Oil, Gas)
design elementEngineering
design elementEnvironmental
design elementFamily Businesses
design elementFranchise
design elementHealth Care
design elementInsurance
design elementIntellectual Property
design elementInternational
design elementLand Use/Planning
design elementLibel & Slander
design elementLocal Govt./Municipalities
design elementMedia & Communications
design elementMedical Malpractice
design elementNursing Homes
design elementPartnerships
design elementPersonal Injury
design elementPremises Liability
design elementProduct Liability
design elementProfessional Fees
design elementProfessional Negligence
design elementReal Estate
design elementSecurities
design elementSports
design elementTaxation
design elementTechnology
design elementTorts
design elementTransportation
design elementTrusts / Estates
design elementWorkers' Compensation
design elementWrongful Death


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Mr. Marks has been a full-time mediator and arbitrator since 1981, when he co-founded Endispute, the United States' first full-service ADR firm. From 1994, he was Vice-Chairman of JAMS-Endispute. For the past decade, Mr. Marks has served as mediator/arbitrator with MARKSADR, LLC. In his 31 years as a full-time mediator and arbitrator, he has handled more than 1,500 major disputes, many of which were high profile litigation matters, including the lengthy mediation involving Microsoft, the Department of Justice and a number of states.

Mr. Marks serves US-based and international clients, concentrating on complex, high-stakes mediations. He is usually retained for merits-based mediations, tailored to identify and overcome case-specific barriers to resolution. According to the co-chairman of a major international law firm, "In addition to being very smart, Mr. Marks understands that building trust in the process and managing human behavior are essential to being a good mediator. He's not one of those people who tells folks what they should do based on his experience or who just plays the 'bid and ask' game."

For both 2011 and 2012, the International Who's Who of Commercial Mediators has recognized Mr. Marks as one of the top ten "most highly regarded" international mediators, based on canvassing "opinions of law firm clients, corporate counsel and mediation specialists around the world."

Before becoming a full-time neutral, Mr. Marks was a federal prosecutor, serving as an Assistant United States Attorney for the District of Columbia; a litigation partner at Munger, Tolles & Olson in Los Angeles; counsel and associate director of the United States Peace Corps; and general counsel of the International Development Cooperation Agency. Before law school, Mr. Marks served in India as a Peace Corps Volunteer.


  • Harvard College (B.A.) 1966, cum laude
  • Harvard Law School (J.D.) 1972, cum laude
    • Editor, Harvard Law Review, Volume 84 (1970-71)
    • President, Harvard Law Review, Volume 85 (1971-72)

Memberships & Affiliations

International Academy of Mediators

American College of Civil Trial Mediators


Please see Rate Sheet at MARKS ADR Website
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