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    When Prior Agreements Collide with New Ventures: Contract, Fiduciary Duty, and the Economic Loss Doctrine in D’Elia v. Martinez

    By Mark Fantin
    January 3, 2026

    In D’Elia v. Martinez (CAM-L-2500-21), the Superior Court of New Jersey’s Complex Business Litigation Program denied summary judgment on nearly all claims stemming from a contentious medical practice breakup—except for negligence, which was dismissed under the Economic Loss Doctrine. The court found genuine factual disputes about whether old shareholder and employment agreements continued after the parties joined a new entity, and whether self-dealing occurred with management fees, precluding summary judgment on contract, fraud, fiduciary duty, conversion, unjust enrichment, defamation, tortious interference, and trade secret claims.

    Background: The Breakup of a Medical Practice and the Move to Advocare

    This business dispute arose from the dissolution of The Women's Group for Obstetrics and Gynecology, Inc. (“WGOB Gyn”), a professional medical practice in New Jersey, and its transition into Advocare The Women's Group Ob/Gyn (“AWG”), a division of Advocare, LLC. The three key physicians—Dr. Donna L. D’Elia, Dr. Jonel M. Dershem (plaintiffs), and Dr. Wendy Martinez (defendant)—were at the center of a web of old and new agreements, proxies, and compensation structures.

    • Pre-2012:

      • D’Elia and Martinez entered into a Shareholder’s Agreement (1994), with D’Elia granting Martinez an Irrevocable Proxy over her shares.
      • Dershem joined as a shareholder in 1997, also signing an identical proxy.
      • Martinez’s employment agreement with WGOB Gyn included administrative (management) fees with biennial cost-of-living adjustments; D’Elia and Dershem’s did not.
    • 2012 Transition:

      • All three joined Advocare, LLC as AWG, signing separate employment agreements with Advocare.
      • WGOB Gyn ceased medical practice; all revenues and receivables from patient care now belonged to Advocare.
      • A proposed “Founder’s Agreement” for the Advocare division was prepared, intending to carry over prior WGOB Gyn agreements—including the irrevocable proxy—but was never signed. D’Elia explicitly objected to the proxy’s continuation.
    • Post-2012 Events:

      • Martinez, after consulting with an accountant, calculated “back pay” for management fees she claimed were owed since 1998, and allegedly instructed Advocare to pay her from Care Center funds.
      • Plaintiffs assert they only discovered these payments in 2020.
      • Martinez continued to receive management fees from Advocare even though no agreement authorized such payments.
      • All parties received K-1s from Advocare, not WGOB Gyn.
      • Plaintiffs resigned from AWG and WGOB Gyn effective December 31, 2020. There is a factual dispute about the timing and sufficiency of their notice.
    • Communications:

      • Martinez sent a communication to patients alleging plaintiffs left without notice and took patient information without permission.

    Procedural History and Claims

    Defendant Martinez filed a motion for summary judgment on all claims and counterclaims. Plaintiffs opposed but did not cross-move for summary judgment.

    Plaintiffs’ Claims:

    • Breach of Contract
    • Fraud and Misrepresentation
    • Defamation
    • Negligence
    • Tortious Interference with Prospective Economic Advantage
    • Conversion and Unjust Enrichment

    Defendant’s Counterclaims:

    • Breach of Contract
    • Breach of Fiduciary Duty
    • Tortious Interference
    • Defamation
    • Conversion
    • Unjust Enrichment
    • Violation of the New Jersey Trade Secrets Act
    • Breach of Implied Covenant of Good Faith and Fair Dealing

    Key Legal Issues:

    • Did the old WGOB Gyn agreements (including proxies and management fee provisions) survive or govern after joining Advocare?
    • Was Martinez entitled to management fees from Advocare funds post-transition?
    • Did Martinez’s actions amount to breach of contract, fraud, conversion, unjust enrichment, or breach of fiduciary duty?
    • Were plaintiffs’ claims for fraud barred by the statute of limitations, or negligence by the Economic Loss Doctrine?
    • Did Martinez’s communications constitute defamation or tortious interference?
    • Did plaintiffs misappropriate trade secrets under the New Jersey Trade Secrets Act?

    Legal Standards Applied

    The court meticulously set out and applied the following legal standards:

    Summary Judgment

    • Standard: Summary judgment is only appropriate where there is no genuine issue of material fact and the moving party is entitled to judgment as a matter of law. The evidence is viewed in the light most favorable to the non-moving party (Brill v. Guardian Life Ins. Co., 142 N.J. 520 (1995)).

    Contract Formation and Modification

    • An enforceable contract must be definite; modification requires mutual assent and consideration.
    • Oral modifications are permitted, even if the original contract precludes them (Sodora v. Sodora, 338 N.J. Super. 308 (Ch. Div. 2000)).
    • Abandonment of contract requires mutual assent.

    Covenant of Good Faith and Fair Dealing

    • Every contract includes this implied covenant (Sons of Thunder v. Borden, Inc., 148 N.J. 396 (1996)).
    • Breach requires: (1) a contract; (2) bad faith conduct depriving plaintiff of contract benefits; (3) resulting injury.

    Common Law Fraud

    • Elements: (1) material misrepresentation; (2) knowledge of falsity; (3) intent to induce reliance; (4) reasonable reliance; (5) damages (Gennari v. Weichert Co. Realtors, 148 N.J. 582, 610 (1997)).

    Fiduciary Duty

    • Duty of loyalty and care; breach occurs when the dominant party acts for personal benefit without disclosure (Silverstein v. Last, 156 N.J. Super. 145 (App. Div. 1978)).

    Statute of Limitations and Discovery Rule

    • Claims accrue when the injured party discovers or should have discovered the basis for the claim (Guichardo v. Rubinfeld, 177 N.J. 45 (2003)).

    Defamation

    • Elements: (1) defamatory statement; (2) concerns plaintiff; (3) falsity; (4) publication; (5) actual knowledge, recklessness, or negligence as to falsity (Lutz v. Royal Ins. Co., 245 N.J. Super. 480 (App. Div. 1991)).

    Economic Loss Doctrine

    • Bars tort recovery for economic losses arising solely from contractual relationships (Spring Motors Distributors, Inc. v. Ford Motor Co., 98 N.J. 555 (1985)).

    Negligence

    • Requires duty, breach, causation, and damages.

    Tortious Interference

    • Elements: protected interest, malice/intentional interference, causation, damages.

    Conversion and Unjust Enrichment

    • Conversion: wrongful exercise of dominion over property.
    • Unjust Enrichment: defendant received a benefit and retention would be unjust.

    Trade Secret Misappropriation

    • Requires existence of a trade secret, breach of confidence, acquisition by a competitor, detrimental use, and reasonable secrecy precautions (Rycoline Products, Inc. v. Walsh, 334 N.J. Super. 62 (App. Div. 2000); N.J.S.A. 56:15-1 et seq.).

    Court’s Analysis and Application to the Facts

    Contract and Modification Issues

    The central factual dispute was whether the prior WGOB Gyn agreements—including administrative fee provisions and irrevocable proxies—continued to govern after the parties joined Advocare. The court found:

    • No signed Founder’s Agreement (which would have incorporated the old agreements) was ever located, and D’Elia explicitly objected to continuing the proxy.
    • The Advocare agreements stated they “superseded all prior agreements,” and required all Care Center income after expenses to belong to Advocare.

    “The Court therefore finds that the original agreement did not automatically transfer over to the medical practice operating as a Division of Advocare.”

    Accordingly, questions about whether Martinez was entitled to management fees from Advocare funds, and under what authority, remained for trial.

    Fraud and Fiduciary Duty

    Martinez allegedly instructed Advocare to pay her substantial “back pay” for management services, calculated with interest, from Care Center funds—without the knowledge or consent of the other doctors.

    • The court found a jury could conclude Martinez breached her fiduciary duty by “improperly using Advocare revenue to pay herself pre-Advocare expenses without the knowledge or consent of plaintiffs.”
    • Plaintiffs’ assertion that they only discovered these payments in 2020 triggered the discovery rule, precluding summary judgment on statute of limitations grounds.

    Defamation and Tortious Interference

    Martinez’s letter to patients stated the plaintiffs left without notice and “took with them patient information which enabled them to send notices…in an effort to change their future appointments.”

    • The court found factual disputes about whether these statements were true or defamatory, and whether they caused reputational harm or loss of goodwill.
    • There were also triable issues as to whether these communications constituted tortious interference with plaintiffs’ economic advantage.

    Conversion and Unjust Enrichment

    Given the unresolved question of which agreements governed the parties’ rights post-Advocare, the court held a jury could find that Martinez’s receipt of funds constituted conversion or unjust enrichment if she was not entitled to them.

    Negligence and the Economic Loss Doctrine

    The court dismissed the negligence claim with prejudice, holding:

    “The Court finds that plaintiffs have failed to establish any tort duty as a matter of law that is owed to plaintiffs by defendant. The Court further finds that the Economic Loss Doctrine precludes the claim asserted.”

    Trade Secret Misappropriation

    Martinez’s counterclaim alleged plaintiffs misappropriated trade secrets (patient information). The court found significant factual and standing disputes—specifically, whether the information actually belonged to Advocare, and whether it was even a protectable trade secret—precluding summary judgment.

    Practical Implications for New Jersey Businesses

    This opinion highlights several critical points for New Jersey business owners and professionals—especially those involved in practice transitions, mergers, or breakups:

    1. Supersession of Prior Agreements:
      When joining a new entity, prior agreements (even those with proxies or compensation structures) may not automatically carry over—especially if the new agreement contains a merger clause or expressly supersedes old contracts.

    2. Contract Ambiguities and Oral Modifications:
      Disputes over whether old provisions survive, or whether parties orally modified terms, often present factual questions requiring a trial—especially absent clear, mutual assent.

    3. Self-Dealing and Fiduciary Duties:
      In closely held businesses and professional practices, partners or managers must be transparent about compensation and avoid unilateral decisions that benefit themselves without consent.

    4. Economic Loss Doctrine as a Shield:
      Where claims arise solely from contractual duties, New Jersey courts will not permit parallel negligence claims. Plaintiffs must ground such claims in independent tort duties.

    5. Discovery Rule and Latent Claims:
      Claims for fraud or self-dealing may survive statute of limitations defenses if plaintiffs could not reasonably have discovered the wrongful conduct until later.

    6. Misappropriation and Trade Secrets:
      Claims of misappropriation require careful analysis of ownership, confidentiality, and actual secrecy measures. Merely accessing information as an employee or partner may not suffice for liability.

    Actionable Takeaways for Business Owners and Practitioners

    • Review and Update Agreements:
      When entering a new business structure, thoroughly review (and update) all relevant agreements. Ensure all parties sign any intended new governing documents.

    • Document Mutual Assent:
      Capture in writing any modifications or abandonments of prior agreements, especially around compensation and authority.

    • Avoid Self-Dealing:
      Managers and partners must disclose and obtain approval for any compensation beyond what is expressly permitted—especially after reorganization.

    • Rely on Contract Remedies:
      When a dispute is fundamentally contractual, do not attempt to recast it as a tort; the court may dismiss such claims.

    • Monitor Internal Controls:
      Regularly audit compensation, distributions, and management actions to ensure transparency and prevent later disputes.

    • Protect Trade Secrets with Clear Policies:
      Maintain clear, documented policies on the ownership and confidentiality of business information, especially during transitions.

    Conclusion: Get Legal Guidance Before, During, and After Transitions

    Disputes like D’Elia v. Martinez underscore the complexity of business breakups, mergers, and reorganizations—especially when old and new agreements collide. If you are entering, restructuring, or exiting a business, consult experienced New Jersey business counsel early and often to ensure your rights are protected, your agreements are clear, and you avoid costly litigation.

    If your business is facing similar issues—contract disputes, fiduciary duty questions, practice transitions, or potential claims under the Economic Loss Doctrine—contact our firm today for strategic, proactive legal advice.

    Keywords:
    nj business court
    new jersey
    breach of contract
    fraud
    conversion
    unjust enrichment
    judge polansky
    complex business litigation

    Source Opinion

    This article is based on CAM-L-2500-21 decided on May 2, 2025.

    View Full Opinion (PDF)

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