Father accuses son of mismanagement and conversion in family investment property dispute

Richard J. Hughes Justice Complex
Richard J. Hughes Justice Complex
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A New Jersey appellate court has upheld key findings that a son mismanaged an investment property and converted funds to his own benefit at the expense of his father, but ordered further proceedings before any forced sale of the property can occur. The decision addresses longstanding disputes between family members over ownership rights, financial management, and remedies related to a commercial and residential building purchased through a limited liability company.

The complaint was filed by Warren Diamond, individually and derivatively on behalf of 147 Broad St., LLC, against Scott Diamond in the Superior Court of New Jersey, Law Division, Monmouth County (Docket No. L-3090-18). The appeals were argued on January 15, 2026, with the opinion issued on March 31, 2026. Scott Diamond is named as defendant-appellant; 147 Broad St., LLC intervened as an appellant after judgment.

According to the court’s opinion, the central conflict arose from Warren Diamond’s allegations that his son Scott had mismanaged the property located at 147 Broad Street in Red Bank, New Jersey. The property was purchased in 2013 for $1.375 million through 147 Broad St., LLC—a company formed by Scott Diamond with himself as majority owner (99%) and his sister Melissa holding one percent. Warren provided significant funding for both acquisition and development: he paid the initial deposit, arranged financing from Amboy Bank, lent $280,000 at closing, contributed additional funds for furniture and improvements totaling at least $440,000 according to trial stipulations.

Disputes intensified over management practices after purchase. Warren claimed Scott engaged in self-dealing by setting up management agreements under which entities controlled by Scott collected ten percent of gross revenues as fees—totaling more than $162,800 between 2014 and 2024—and that Scott underpaid rent while living in the building’s second-floor apartment. Evidence showed that instead of paying $3,200 per month as required by lease documents submitted to Amboy Bank at closing, Scott paid himself interest on internal loans and used those amounts to offset lower rent payments ($2,500 per month), without producing any written lease supporting this arrangement.

In August 2018 Warren sued Scott asserting both individual claims (including conversion and unjust enrichment) and derivative claims on behalf of the LLC under New Jersey’s Revised Uniform Limited Liability Company Act (RULLCA). He sought access to records, removal of Scott as manager or member interest holder due to alleged oppression or breach of fiduciary duty, compensatory damages for conversion of funds and unjust enrichment claims based on improper benefits conferred upon Scott.

After nearly six years of discovery and pretrial motions—including disputes over incomplete production of accounting records—the matter proceeded to a ten-day bench trial in early 2024. Both Warren and Scott testified; no other witnesses appeared. The trial court found neither party fully credible but determined based on evidence that Scott had engaged in “a decade-long continuous and unexplainable misappropriation of funds … which served his own benefit” at Warren’s expense.

Specifically addressing conversion claims (the wrongful exercise of control over another’s property), the trial court found that Scott took unauthorized control over half of Warren’s $280,000 investment by allocating it as a loan to himself with ten percent annual interest—converting $140,000 over ten years—and manipulated internal accounts so that rental obligations were satisfied through these book entries rather than actual payments to the LLC. The court also found deliberate undervaluation of rent payments benefiting Scott.

On unjust enrichment claims (retaining benefits without payment where equity demands restitution), the court concluded that Scott underpaid rent compared to what was contractually required; only one distribution ($50,000) was made to Warren despite substantial investments; and management fees were improperly diverted. These actions prevented Warren from receiving expected returns from his involvement with the property.

The trial court also recognized a joint venture between Warren and Scott based on their collaboration in acquiring and operating the property—citing contributions by both parties toward purchase price negotiations, financing arrangements guaranteed by Warren personally, capital infusions for development costs exceeding $440,000 from Warren alone—and awarded Warren a forty-nine percent interest contingent upon certain conditions outlined in prior agreements between them.

As remedy for these breaches—including conversion and unjust enrichment—the trial judge initially ordered sale of the property with proceeds distributed fifty percent to Scott Diamond, forty-nine percent to Warren Diamond, one percent to Melissa Diamond after repayment of outstanding loan accounts held by both men ($189,269.69 for Warren; $226,769.69 for Scott). Additionally: “Scott has engaged in ten-years’ worth of abuse of power as a 99% interest-holder [of 147 Broad] and sole manager,” wrote the judge when explaining why forced sale was considered equitable relief.

Scott appealed this judgment entered June 30th 2024 arguing there was insufficient evidence supporting findings against him regarding conversion or unjust enrichment; further claiming error because he believed contractual provisions deferred any transfer or recognition of interests until he vacated residence in apartment—which had not occurred—and objected procedurally since he felt compelled sale exceeded available remedies absent input from all affected parties including corporate owner (147 Broad St., LLC).

Following entry of final judgment—but before enforcement—147 Broad St., LLC moved successfully to intervene solely for purposes appealing remedy orders affecting its assets without prior notice or opportunity be heard; action stayed pending outcome appeal process.

On review: The appellate panel affirmed all factual findings regarding liability—conversion by unauthorized appropriation/investment account manipulation; unjust enrichment via underpayment/distribution withholding; existence joint venture—but vacated order compelling immediate sale/remanded case back lower court limited hearing remedies only after ensuring full participation/intervention rights for both LLC entity itself Melissa Diamond who holds minority stake: “We vacate remedy compelling sale … remand limited hearing … both law equity allow court compel sale provided [LLC] afforded opportunity be heard.”

On remand possible outcomes include money judgments against individuals involved; judicially supervised partition/sale if warranted under principles equity/joint venture law; or other forms relief consistent with established facts legal conclusions now binding parties following appellate review.

Attorneys involved include Marc J. Gross (Fox Rothschild LLP) representing Scott Diamond; Darren C. Barreiro (Greenbaum Rowe Smith & Davis LLP) representing appellant/intervenor 147 Broad St., LLC; Timothy C. Moriarty (Charles Moriarty LLC) representing respondent/plaintiff Warren Diamond along with Matthew K. Blaine appearing on briefs. The case is identified under Docket Nos A-3523-23 / A-0581-24.

Source: A058124_Diamond_v_Diamond_Opinion_New_Jersey_Superior_Court_of_Appeals.pdf



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