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Marc Isserles

Marc E. Isserles, Esq.

Case Manager
Brittany Faulconbridge
T: 212-607-2788
F: 212-751-4099
620 Eighth Ave., 34th Floor, New York, NY 10018


Mr. Isserles is available to conduct virtual mediations, arbitrations and other ADR proceedings on Zoom and other online platforms.

Marc E. Isserles, Esq.
is a skilled commercial mediator with twenty years of litigation experience handling complex business disputes. A former law clerk to U.S. Supreme Court Justice Stephen Breyer and a founding partner of a top New York City litigation boutique, Mr. Isserles brings to his mediation practice the skills of a seasoned litigator, legal strategist, and nuanced legal thinker. Mr. Isserles is known for his keen analytical skills, judicious temperament, thorough preparation, and ability to quickly grasp both sides of a complicated issue while keeping an open mind.

Mr. Isserles is an experienced mediator and arbitrator in a wide variety of substantive areas, including: intellectual property (copyright, trademark, and patents), entertainment, breach of contract and license agreements, distribution and franchise agreements, software development and new technologies, publishing and royalty disputes, partnership and LLC disputes, disputes between members of a family or small business, fraud, breach of fiduciary duty, theft of trade secrets, attorneys’ and other professional fee disputes, employment discrimination, FLSA wage and hour, employee compensation and bonus disputes, public accessibility and civil rights, insurance coverage, bankruptcy, appellate, class actions, securities, legal and professional malpractice, ERISA and environmental. Mr. Isserles also serves as a neutral on various court panels, including the mediation program for the U.S. District Court for the Southern District of New York and the Supreme Court, Commercial Division for New York County. Mr. Isserles is a Lecturer in Law in the Negotiation Workshop at Columbia Law School.

Representative ADR Matters

  • Business/Commercial
    • Mediation
      • Mediated numerous partnership and LLC member disputes, including dissolution and break-ups, compensation claims by departing partners/members, and breach of fiduciary duty and similar claims brought against departing partners/members
      • Mediated numerous fee disputes between law firms and former clients; between law firms acting as co-counsel; and between law firms and departing partners
      • Mediated numerous disputes between software developers and clients, in a wide variety of industries, over issues including design and functionality of software, timing of software development, and fees
      • Mediated numerous licensing disputes in a wide variety of industries involving claims by licensor for payment and/or licensee’s claims that product or service was deficient
      • Mediated numerous publishing and royalty disputes, including disputes between authors and book publishers, disputes between book publishers and on-line platforms, disputes between publishers, and an antitrust dispute between book sellers and book publishers
      • Mediated several disputes between investors and lending company over proper calculation of investment returns
      • Mediated 8-figure dispute between major international airline and manufacturer of aircraft engine over lease of two aircraft engines
      • Mediated 8-figure dispute between former and new owners of crypto-currency exchange over payments allegedly owed to founders
      • Mediated contract dispute between major telecommunications provider and device manufacturer
      • Mediated dispute between commercial lender and historic church over loan default and potential loss of church property
      • Mediated interpleader action brought by bank relating to distribution of trust funds, and counterclaim alleging mismanagement by trustee.
      • Mediated dispute between former and new owners of restaurant over alleged theft and unauthorized control by former owners
      • Mediated dispute between major financial services firm and recruiting firm over breach of “off limits” provision
      • Mediated dispute over distribution agreement between molecular diagnostics company and manufacturer and distributor of clinical laboratory supplies for alleged failure by distributor to meet minimum purchase requirements.
      • Mediated dispute between exclusive global placement agent and private equity fund for alleged failure to pay placement fee
      • Mediated enforcement action between state attorney general and ticket resellers over sale and marketing of allegedly “speculative” tickets
      • Mediated dispute between aviation engineering services company and engineering design consultant over unpaid invoices and alleged project delays and deficient performance
      • Mediated dispute between online broker and technology company over unlawful termination of distribution agreement for portfolio solution
      • Mediated subrogation claim brought against electrical company for alleged faulty wiring causing collapse of turbines
      • Mediated tortious interference claims brought by owner of solar panel company against investor and investor’s attorney
      • Mediated subrogation claim brought on behalf of parts manufacturer where customer payments were wrongfully diverted following security breach of computer system
      • Mediated Telephone Consumer Protection Act claim against major media company
      • Mediated subrogation claim brought against shipper for heat damage to valuable wine
      • Mediated dispute involving alleged breach of provision requiring exclusive negotiations with potential acquirer of pharmaceutical company
      • Mediated dispute between restaurant and adjoining building, and its contractors, over scaffolding that was allegedly interrupting restaurant’s business
      • Mediated dispute between warehouse and contractor over amount and nature of invoices for clean-up work following major storm
      • Co-mediated high eight-figure dispute between biotechnology company and contractor over management of clinical trial
      • Mediated dispute between former joint ventures over alleged usurpation of opportunity for financing a new hedge fund
      • Co-mediated 9-figure fraud action against major law firm and bank in connection with sale of mortgage fund securities
      • Co-mediated dispute over attempted foreclosure of commercial mortgage for a shopping center
      • Mediated breach of contract dispute between property owner and interior designer over forged checks and unauthorized transactions
      • Mediated dispute between former spouses and family members over alleged failure to return money used to purchase real estate
      • Mediated multi-million dollar dispute over alleged obligation to negotiate agreement to build telecommunications pipeline
      • Co-mediated negligence and fraud action brought by receiver and shareholder class against officers and directors of failed bank
      • Mediated several claims against shippers and terminals involving damage to cargo during Superstorm Sandy
      • Mediated numerous claims arising out of several asbestos settlement trusts
    • Arbitration
      • Arbitrated 8-figure dispute between compliance technology companies over failed partnership arrangement
      • Arbitrated numerous collection actions brought by information services provider and customers
      • Arbitrated claim by legal expert against law firm for unpaid invoices
      • Arbitrated claim by contractor against major shipper for wrongful termination of contract
      • Arbitrated dispute between contractor and homeowner over fees allegedly due after homeowner terminated contractor
      • Arbitrated claim by major law firm against former client and client’s new law firm for unpaid contingency fee
      • Arbitrated breach of contract dispute between major hotel chain and organization arising out of failure to use reserved hotel rooms and meeting space for conference
      • Arbitrated dispute between members of architectural services firm over alleged diversion of firm’s clients and funds.
  • Intellectual Property/Entertainment
    • Mediated numerous high-profile copyright infringement and co-ownership disputes brought against major record labels, publishing companies, composers, and recording artists
    • Mediated numerous trademark licensing and trademark infringement disputes in a wide variety of industries
    • Mediated Visual Artists Right Act dispute between a group of visual artists and large municipality over alleged removal and mutilation of protected works
    • Mediated dispute between jewelry designer and celebrity actress over alleged failure by actress to market and support the product
    • Mediated copyright ownership dispute between authors of a musical
    • Mediated dispute between talent agency and “influencer” over termination of representation agreement 
    • Mediated dispute between art collector and major gallery over sale of famous surrealist painting
    • Mediated dispute between media company, major record company, and product placement agency relating to production of music video
    • Mediated 8-figure dispute between major toy manufacturer and two former executives who started their own company and allegedly misappropriated exclusive license of former company
    • Mediated dispute between former management company and major R&B recording artists over termination of management agreement
    • Mediated copyright infringement claim by photographer against book publisher for using unlicensed photograph
    • Mediated right of publicity claim brought by individual against health care organization for unlicensed use of photo
    • Mediated multi-million dollar contract and royalty dispute between new artist and managers
    • Mediated nine-figure royalty licensing dispute between owner of business method patents and licensee/purchaser of business
    • Mediated multi-jurisdictional copyright infringement actions arising out of exploitation of music publishing rights under licensing agreements
    • Co-mediated copyright dispute over design of web portal for hotel chain
    • Co-mediated copyright dispute between photography rightsholders and textbook publisher
    • Co-mediated dispute between foreign government and U.S. research center over patent royalties allegedly derived from laboratory research conducted in foreign country
  • Employment
    • Mediated and arbitrated numerous gender, race, age, and disability discrimination disputes in a wide variety of industries
    • Mediated and arbitrated numerous whistleblower and other retaliation claims arising under various statutes
    • Mediated and arbitrated numerous FLSA (and state and local law) wage and hour disputes
    • Mediated and arbitrated numerous employee/executive compensation and bonus disputes
    • Mediated several FMLA disputes
  • Bankruptcy
    • Co-mediated claims in excess of $1 billion by bankruptcy trustee against secured lenders seeking to avoid security interest in hundreds of thousands of purported fixtures of automobile manufacturer.
  • Insurance
    • Arbitrated dispute between malpractice carrier and insured over duty to defend and informed consent policy exclusion
    • Co-mediated multimillion dollar malpractice action against law firm in connection with coverage advice given to insurance carrier in property damage litigation arising out of a major construction accident
    • Co-mediated multi-party insurance coverage dispute arising out of $1 billion proposed class action settlement of tort claims
    • Co-mediated insurance coverage dispute between primary and excess carriers over allocation of settlement
    • Co-mediated coverage dispute arising out of settlement of products liability claims brought against major manufacturer following a fire
  • Environmental
    • Mediated enforcement action for cleanup of superfund site
    • Mediated contract dispute over responsibility for legacy environmental clean-up costs between buyer and seller of chemical compound manufacturing business
    • Co-mediated multi-million dollar property claims and third-party contribution claims, arising out of major environmental accident at water storage facility
  • Class Action/Mass Tort
    • Mediated purported nationwide class claim brought against major retailer for violation of the Fair and Accurate Credit Transactions Act
    • Co-mediated personal injury and property claims arising out of major accident at construction site
  • Malpractice
    • Mediated numerous legal and other professional malpractice disputes
  • Public Accessibility and Civil Rights
    • Mediated numerous Title III ADA public accessibility claims against major retailers and restaurants
    • Mediated Fair Housing Act accessibility claim against commercial developer
    • Mediated appeal of Section 1983 excessive force claim involving alleged wrongful detention and arrest of a train enthusiast
    • Mediated equal protection “class of one” claim brought by homeowner against town and town officials
    • Mediated multi-party ERISA action involving 9-figure alleged underfunding and mismanagement of hospital pension fund
  • Lecturer in Law, Columbia Law School, Negotiation Workshop – 2018-2019
  • Neutral on various court panels, including the mediation program for the U.S. District Court for the Southern District of New York and the Supreme Court, Commercial Division for New York County
  • Founding Partner, Shapiro, Arato & Isserles LLP, 2009-2014
  • Partner and Associate, Cohen & Gresser LLP, 2005-2008
  • Associate at Parcher, Hayes & Snyder, O’Melveny & Myers, and Jenner & Block, 2000-2005
  • Law Clerk to Hon. Stephen G. Breyer, U.S. Supreme Court, 1999-2000
  • Law Clerk, Hon. Laurence H. Silberman, U.S. Court of Appeals for the D.C. Circuit, 1998-1999
  • J.D., magna cum laude, Harvard Law School, 1998; Joshua Montgomery Sears Prize (for highest grade point average during second year), 1996-1997; Notes Editor, Harvard Law Review, 1996-1998
  • B.A., Sarah Lawrence College, 1993

Counsel Comments

    • "Excellent legal knowledge and first rate Mediation skills. I would recommend him highly. I would rank Mr. Isserles among the best Mediators I have encountered.”
    • "Mr. Isserles is an intelligent, persuasive, thoughtful, empathic and patient mediator. He is a pleasant person to spend the day with and is careful to always keep the focus on the clients. These qualities enable the parties to reach a handshake without even realizing their arms had been twisted.”
    • “Marc has that rare and perfect combination of mediator skills - patience, persistence, personable, and razor-sharp smarts. He quickly masters legal issues and gets to the heart of a dispute and what drives each side. He masterfully helped resolve my multi-party action involving a number of strong personalities.”
    • “Mr. Isserles was an impressively prepared, skilled, and patient neutral who worked tirelessly to get the parties together in a hotly contested federal case. I would recommend him without hesitation.”
    • “After the parties experienced an unsuccessful and very contentious mediation with another mediator, Mr. Isserles stepped in and managed to professionally and expeditiously resolve the parties' complex partnership dispute in less than a day.”
    • “Marc Isserles was able to settle a multifaceted commercial case involving multiple parties, in which no one going into the mediation believed would ever settle. The case, which had already been through a full hearing before the California Labor Board, in connection with a breach of an Artist’s Manager contract, was extremely contentious. Marc quickly assessed the situation, identified the issues and managed to deal with some extremely difficult clients on both sides of the table. He had thorough knowledge of the law, knew the history of the case and effectively used this information to work with both sides. Marc persevered even when he was told by both sides there would be no settlement. Before the evening ended, a deal memo was signed. I recommend Marc without reservation.”
    • “Marc Isserles served as a mediator in a complex commercial dispute involving numerous disputed legal and factual issues. Throughout the process, Marc demonstrated great skill, patience and understanding in dealing with the parties and their respective claims. He is smart, open-minded and demonstrated a unique ability to come up with possible creative solutions for settlement throughout the mediation process - all the while maintaining the respect of the litigants and counsel. I would certainly recommend Marc to be a mediator in any commercial dispute and feel confident that his involvement will be favorably received by all participants.”
    • “Mr. Isserles served as mediator in a commercial contract dispute. He quickly became conversant with the factual and legal issues involved in the case and, just as important, identified the practical impediments to settlement and brainstormed with the parties how they could best be overcome. Before the day of mediation ended, we had reached a complete settlement that might not have been attainable with a less skilled mediation professional.”
    • “Marc has the qualities found in only the very best mediators - intelligence, attentiveness, creativity, and persistence. I very much look forward to working with Marc again.”
    • “Marc helped us resolve a business dispute in which personal feelings ran high. He showed intelligence and attention to detail, and dealt with the parties with energy and humor. We would recommend him highly.”
    • “Marc is a highly effective mediator who is smart, well-prepared and engaging. He was instrumental in resolving a complex commercial matter at mediation. I would recommend him without qualification.”
    • "Marc did a great job in a relatively small but emotionally-charged employment/bonus case. I thought he...showed excellent judgment and excellent people skills in bringing the parties to the right compromise figure. Importantly, he showed creativity and doggedness in working through a very tricky procedural issue after the parties had agreed on the settlement amount. In a good and respectful way, he wouldn’t let us go home and give up, and we eventually found a way through the issue.”
    • "Marc is a highly effective, intelligent mediator with a remarkable work ethic. In a highly contentious employment case, he was personable and patient, well-prepared, and completely impartial. Marc was instrumental in bringing about a good result for all parties. I would recommend him without reservation.”
    • "After my client had great experience with Marc in New York, we flew him across the country to help with a contentious disability discrimination case by a former executive. He quickly cut to the core issues in the case – legal, factual, and emotional – and guided the parties to a resolution in the weeks after mediation when lengthy and expensive litigation seemed imminent. His insights and reads were all spot-on, and the client was extremely happy to have invested in his expertise."
    • "Marc Isserles did a great job at our mediation. We showed up with fairly low expectations given how far apart the sides were, but left with an agreement. Marc was prepared at the outset and drilled down throughout the process on the merits and motivations of the parties. He then used a practical approach to help direct the parties to resolution. I would highly recommend Marc and plan to use him again if the need for a mediator arises."
    • "Marc was remarkably attentive to my clients and their desire to understand and engage in the negotiation process. He maintained his laser focus, sharp analysis and patient demeanor throughout a prolonged mediation session. I feel very fortunate to have had him handling our case and would easily recommend him to my colleagues and others in the field."
    • "Marc is an excellent mediator, who I would highly recommend. I had a complex and difficult employment matter that we could not resolve. Through Marc's hard work, patience, guidance and expertise both sides reached a fair agreement. It wasn't easy but Marc brought us together. Myself and my attorney greatly appreciate his professionalism."
    • "Marc is a stellar mediator. He was prepared, patient and intelligent. He went above and beyond all expectations by following up after the mediation to facilitate a successful settlement in a complex commercial dispute. I highly recommend him as a mediator"
    • "I would highly recommend Mr. Isserles as a mediator for a broad range of commercial disputes. Mr. Isserles has served as mediator for our clients on two separate occasions involving commercial contract disputes in vastly different industries, both of which were successfully resolved. The resolution in each matter was due in large part to Mr. Isserles’ preparation, patience and creative thinking"
    • "Marc served as the mediator in a 'business divorce' case in which our client, an investment advisor, was seeking to expel one of its three owners and managing members. Our client, of course, wanted him out as soon as possible while paying him as little as possible. He wanted the opposite. Emotions were very high on both sides. Marc did an extraordinary job in guiding the parties to a settlement that both could (unhappily) live with. He was calm, rational, insightful and listened well but also knew when to point out weaknesses or push back. After an initial in-person session, he worked with us for more than a month as the parties exchanged offers and counter-offers against the backdrop of a difficult and deteriorating business environment. He was unfailingly responsive and constructive. He was also instrumental in helping the parties overcome several instances in which it appeared they had reached an impasse. I would enthusiastically recommend Marc for any commercial dispute."
    • "Marc is an extraordinarily skilled mediator who can quickly master the legal and factual issues, and most importantly, communicate effectively with strong personalities. He has a unique ability to candidly communicate difficult information that a party would prefer not to hear in a respectful and empathetic manner. Marc’s patience, diligence and persistence are especially impressive."
    • "In my many years of practice and many mediations, Marc is one of the best mediators I’ve encountered. He was thoroughly prepared and did not hesitate to press both sides. And he has the right temperament for the long, tense days that mediations often require."




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