Securities Litigation & Arbitration
The Costello Law Group provides quality legal services to investors damaged by misleading advise and unsuitable products. The firm represents investors in arbitration, mediation, both federal and state courts in Maryland and throughout the United States.
Admitted to practice in 1994, Mr. Costello, an AV rated litigator, began his legal career by representing securities broker-dealers in connection with their employment disputes, customer disputes and regulatory inquiries. Based upon that experience, Mr. Costello shifted the focus of his practice to the representation of customers in connection with their claims against investment professionals. Over the course of his career, Mr. Costello has successfully represented more than 150 individual investors across the United States and successfully resolved their claims. Mr. Costello has represented individual investors against firms like Merrill Lynch, UBS, Wachovia/Wells Fargo, Sun Trust, CIBC Oppenheimer, Charles Schwab, Linsco Private Ledger, Smith Barney/Citigroup, Prudential in addition to many other investment advisory firms, both large and small, as well as claims against insurance, legal and tax professionals. Mr. Costello’s efforts have resulted in judgments, settlements and awards well in excess of $10 million.
The Costello Law Group advises and represents clients in disputes involving:
- Fraud
- Churning or Excessive Trading
- Theft/Misappropriation of Funds
- Misrepresentation of investments
- Unauthorized trades
- Breach of Fiduciary Duties
- Misuse of Margin Accounts
- Ponzi Schemes
- Over-Concentration in Speculative Investments
- Mutual Fund Fraud
- Improper Asset Allocation
- Unsuitable Investment Advice
- Failure to Disclose or Misrepresentation of Facts
For a free initial consultation to discuss a securities claim, contact the experienced securities litigation attorneys at the Costello Law Group.

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