Juan Rionda, a former Merrill Lynch financial advisor with a career spanning three decades, has agreed to pay $2.75 million to resolve a lawsuit alleging he exploited a vulnerable client during a period of intense grief. The settlement, finalized in May 2025 and recently disclosed on FINRA's BrokerCheck system, also includes a $3.25 million contribution from Merrill Lynch, bringing the total to $6 million. Rionda, who retired from the firm's Delray Beach, Florida office, did not admit wrongdoing but opted to settle to avoid further litigation costs and arbitration uncertainty, according to his BrokerCheck profile.
The lawsuit, filed in October 2024 in Palm Beach County Circuit Court, was brought by Joyce Mcnemar, a longtime Merrill Lynch client. According to the complaint, Mcnemar lost her father in August 2021 and her husband seven months later, leaving her in a fragile emotional state. She met Rionda around that time, and he allegedly became her primary social contact, taking her to social clubs and events, and telling her he loved her. The complaint asserts that Rionda used his fiduciary position to coerce Mcnemar into making an inter vivos transfer of $4.5 million, roughly half her assets.
“In addition to simply having meetings with her as a client, Juan began taking Joyce to social clubs, and a myriad of other social gatherings,” the complaint states. “Juan became her sole social contact, told her that he loved her, and obtained a position of control over her during this time period that she was vulnerable.” The document further alleges that Rionda “took advantage of his position of trust and confidence” to orchestrate the transfer, after which he ceased all meaningful communication with Mcnemar.
The case highlights ongoing concerns about advisor misconduct and fiduciary duties, particularly with vulnerable clients. Merrill Lynch has faced other regulatory issues recently, including a $7.5 million SEC fine for SAR filing failures due to a software flaw. The firm has also been active in recruiting, such as adding a UBS veteran with $460 million in assets and a father-son team with $560 million.
Rionda began his career at Merrill Lynch in 1993 and was based in Delray Beach, Florida. His BrokerCheck profile now lists him as retired. The settlement does not include an admission of liability, but the financial contribution is notable given the allegations. The case serves as a reminder for advisors to maintain clear boundaries and adhere to fiduciary standards, especially when dealing with clients experiencing significant life changes.
Industry observers note that such cases can erode trust in the advisory profession. The $6 million settlement is among the larger ones involving individual advisor misconduct in recent years. For RIAs and broker-dealers, the incident underscores the importance of robust compliance oversight and training on ethical practices, particularly regarding client vulnerability and gift acceptance policies.
