Financial Advisor Diana M. Leon Has Disclosed Three Customer Disputes

• June 29, 2026
• Osaic Wealth

Broker’s Background

 

Diana M. Leon (CRD #: 4857407) is registered with Osaic Wealth, Inc. She is located in Gaithersburg, MD. Diana’s past employers include Merrill Lynch, Pierce, Fenner & Smith Incorporated, Capital One Advisors, LLC, Capital One Investing, LLC, LPL Financial LLC and Woodbury Financial Services, Inc.

 

Current and Past Allegations of Conduct Leading to Investment Loss

 

According to publicly available records released by the Financial Industry Regulatory Authority (FINRA), in January 2026, Diana M. Leon became the subject of a customer dispute alleging, “that a structured note recommended by the representative was not in keeping with the client’s needs and objectives, and/or that the investment was not fully explained to the client”.

 

In addition, Diana M. Leon has been the subject of three past FINRA disclosures, including the following:

• January 2026 – Claimants, by their counsel, allege that unnamed structured note investments recommended by the representative were not in keeping with the clients’ needs and objectives, and/or were not fully explained to them.
• September 2025 – Customer alleges that callable note purchases were not in keeping with her needs and objectives. Damage amount requested was $5,000.00.
• April 2015 – Conduct involving making inaccurate entries of required account reviews in an internal tracking system.

For a copy of Diana M. Leon’s FINRA Broker Check, click here

 

We Help Investors Recover Investment Losses

 

Financial advisors have a legal and regulatory obligation to recommend only suitable investments that are appropriate for their clients’ needs and objectives. Their employing brokerage firm has a legal and regulatory obligation to supervise the Financial Advisors’ sales practices and dealings with clients. To the extent any of these duties are breached, the customer may be entitled to a recovery of his or her investment losses.

 

Reasonable basis suitability requires that a recommended investment or investment strategy be suitable or appropriate for at least some investors. Reasonable basis suitability requires an advisor to conduct adequate due diligence so that he or she can determine the risks and rewards of the investment or investment strategy.

 

Quantitative suitability requires a brokerage firm or financial advisor with actual or de facto control over a customer’s account to have a reasonable basis for believing that a series of recommended transactions – even if suitable when viewed in isolation – is not excessive and unsuitable for the customer when taken together in light of the customer’s investment profile. No single test defines excessive activity, but factors such as the turnover rate, the cost-equity ratio, and the use of in-and-out trading in a customer’s account may provide a basis for a finding that a member or associated person has violated the quantitative suitability obligation. Financial advisors have a legal and regulatory obligation to recommend only suitable investments that are appropriate for their clients’ needs and objectives. Their employing brokerage firm has a legal and regulatory obligation to supervise the Financial Advisors’ sales practices and dealings with clients. To the extent any of these duties are breached, the customer may be entitled to a recovery of his or her investment losses.

 

The Wolper Law Firm represents investors nationwide in securities litigation and arbitration on a contingency fee basis. Matt Wolper, the Managing Principal of the Wolper Law Firm, is a trial lawyer who has handled hundreds of securities cases during his career involving a wide range of products, strategies, and securities. Prior to representing investors, he was a partner with a national law firm, where he represented some of the largest banks and brokerage firms in the world in securities matters. We can be reached at (855) 289-7868 or by email at mwolper@wolperlawfirm.com