We Sue Wall Street
Protecting Investors, Recovering Losses
Trust Us To Handle Your Case
— Since 1970 —
The Securities Lawyers protect investors by lobbying Congress and working with FINRA (the Financial Industry Regulatory Authority) to enact laws and regulations that prevent retirement funds from being lost in the first place. At the same time, we fight every day for our clients in court and arbitration to recover those funds they have already lost. Our primary focus is to help our clients get back on track towards the retirement they were building by recovering the funds that were lost or stolen as a result of their broker’s conduct.
Decades Of Experience
Our team of Securities attorneys have extensive experience, helping our clients recover millions of dollars in losses — with a majority of our cases involving the recovery of retirement funds. We only get paid if we win, and offer personalized, hands-on involvement in every case. The head of our securities and litigation group, Sean Sweeney, serves on FINRA’s National Arbitration and Mediation Committee, which helps make the rules for the FINRA Arbitration Forum. We are on the inside. And we are also on YOUR side.
Trusted Team of Attorneys
Our Securities Litigation Team
Attorney Sean M. Sweeney is the Head of the Securities Litigation Group that works alongside a talented team of attorneys on a wide range of cases, including securities fraud, stock broker employment disputes, and FINRA arbitration. A strong commitment and focus is placed on providing the personalized attention that one would receive at a small law firm, while still receiving high-quality representation. When you retain us for your case, you will receive personalized, hands-on involvement from a partner-level attorney.





“WE ONLY GET PAID IF WE WIN.
THE SECURITIES LAWYERS
Our Fee is a percentage of what we actually recover for you. There is no upfront fee.”
Our Fees
For any client with a potential securities claim, we will provide:
- Free consultation to discuss and review your claim.
- An explanation of the time, commitment, and process for FINRA arbitration (the most common forum for these claims).
- WE ONLY GET PAID IF WE WIN. Our fee is a percentage of what we actually recover for you. There is no upfront fee.
We understand that by the time you realize what has happened in your account, the last thing you want to do is throw more money at a lawyer trying to recover what was lost. That is why we work on a contingent fee basis for these claims. This aligns our interests with yours, which is to resolve the matter as quickly as possible for as large of a recovery as possible.
Featured Services
Nationwide Services
The Rules of FINRA Arbitration…
dictate that the final hearing takes place in the FINRA service location closest to where the claimant (the investor) lives. However, every other aspect of the proceeding is handled on the FINRA web portal and over the phone. This means we can represent investors nationwide. We represent clients in a broad range of cases, including: misrepresentations, customer specific and reasonable basis unsuitability, breach of fiduciary duty, uniform securities law violation, unjust enrichment, and negligence/unsuitable recommendations.
“I am totally satisfied with the representation by Halling & Cayo Law Firm, Sean Sweeney and his team. They exceeded my expectations especially based on our authorized minimum expectations and their exceeding those by significant amounts.”
— Bill B.
“Sean (and his team) did a wonderful job handling my case. He kept me informed every step of the way and was always willing to answer my endless and sometimes repetitive questions!”
— Kathy M.
Client Resources
Esteemed Affiliations & Awards






Reviews And Ratings
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Articles Written By Our Team
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- What happens if a stock broker makes a mistake?If your finances are managed by a stock broker, you may have concerns about what would happen if something went … Read more
- What happens if a stock broker loses your money?If you’re thinking about investing your money with a stock broker, it’s important to know what you could be up … Read more
Message Our Staff
“At The Securities Lawyers, you get hands-on involvement from a partner-level attorney. If I’m lead counsel on your case, there will be associates and paralegals assisting, but I will be the one trying your case, negotiating settlements, and mediating your case.”
— SEAN M. SWEENEY
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Visit Our Office
Milwaukee Office
Halling & Cayo, S.C.
320 E Buffalo St Ste 611
Milwaukee, WI 53202
Open Weekdays 8:00am – 5:00pm
Open Saturday and Sunday for calls and emails.