Jonathan B. Marks, Esquire

Marks ADR, LLC
4833 Rugby Avenue, Suite 301
Bethesda, MD 20814

Phone: 301-907-4712
Fax: 301-907-4719
Other URL

Co-founder and Chairman of ENDISPUTE, Incorporated, the nation's first provider of a full range of dispute resolution and management services. After merger of Judicial Arbitration and Mediation Services and ENDISPUTE, in August 1994, Vice-Chairman of J.A.M.S/ENDISPUTE, and Chairman of the firms Executive Committee, which set professional practice policies for the firms nation-wide panel of former judges and attorney-neutrals. From September, 1999 to present, practice as Mediator/Arbitrator with MARKSADR, LLC.

Provide mediation, arbitration and other substantive dispute resolution assistance to parties seeking faster, less expensive and better resolution of corporate, commercial, insurance and other major disputes. Dispute resolution activities include providing mediation, arbitration and other dispute resolution assistance in litigation or pre-litigation disputes. Over the past 19 years, handled hundreds of major disputes such as:

Disputes involving the sale and acquisition of businesses.
Disputes involving a wide range of commercial activities, including product development, production and technology transfer.
Disputes concerning alleged attorney, accountant and other professional malpractice, as well as disputes involving claims against corporate officers and directors.
Disputes involving government contract claims.
Disputes involving insurance and reinsurance.
Disputes involving all aspects of construction.
Disputes involving environmental claims.
Class actions of all kinds.
Antitrust disputes.
Disputes involving patents and other forms of intellectual property.
High stakes personal injury and product liability claims and lawsuits.

Types of Cases Mediated

  • Business
  • Commercial
  • Construction
  • Contracts
  • Environmental
  • Insurance
  • Intellectual Property
  • Organizational
  • Partnership Dissolutions
  • Product Liability
  • Professional Malpractice
  • Securities

MEMBER: 1998



Although practice is now devoted exclusively to providing neutral dispute resolution assistance, in the past have provided consulting and other analytic assistance in a wide range of projects aimed at cost-effective dispute handling and resolution, as well as at broader legal management issues.


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)

Practicing in District of Columbia, Massachusetts, Maryland, New York

Copyright © 2019, American College of Civil Trial Mediators Directory/Search Contact LinkedIn