O’Mara & O’Callaghan, LLC – Chicago, IL

Strategic Litigation with Business Sense

Former Prosecutors Fighting for Your Interests

O’Mara & O’Callaghan, LLC, located at 230 W Monroe St in Chicago's Loop, is a boutique litigation firm founded by former Cook County prosecutors Peter O'Mara and Sean O'Callaghan. Established in 2013, the firm brings the aggressive advocacy of the criminal courtroom to the business world. The attorneys specialize in Commercial Litigation, Financial Services Arbitration, and Employment Law. Their background as trial lawyers gives them a unique edge; they know how to build a case that stands up in court, which often leads to better settlement outcomes for their clients. Whether you are a startup founder drafting an operating agreement or a corporation facing a regulatory investigation, O’Mara & O’Callaghan offers the tenacity and practical advice you need.

• Business Litigation: resolving contract disputes, partnership conflicts, and shareholder issues with a focus on cost-efficiency.
• Financial Services: Representing traders, brokers, and firms in CME/CBOT arbitrations and regulatory matters involving the SEC and CFTC.
• Employment Matters: Counseling employers and executives on compensation agreements, non-competes, and wrongful termination defense.
• White Collar Defense: defending individuals and entities against allegations of fraud, embezzlement, and financial crimes.

Lean, Responsive, and Results-Driven

O’Mara & O’Callaghan was built on the premise that high-quality legal representation doesn't have to come with big-firm bureaucracy or overhead. The firm prides itself on being leaner and more responsive than its larger competitors. Clients work directly with experienced partners who are invested in their success, not junior associates. If you are looking to hire a lawyer who combines business acumen with trial-tested skills, this firm is a compelling choice. They offer a secure online client portal for easy communication and payments, reflecting their commitment to modern, client-friendly service. From the boardroom to the courtroom, O’Mara & O’Callaghan is dedicated to protecting your reputation and your bottom line.

A Principled Approach to Law

The firm's philosophy emphasizes practicality over posturing. They understand that litigation is a means to an end, not an end in itself. Therefore, they focus on finding the quickest path to victory, whether that means a negotiated settlement or a verdict at trial. With a deep understanding of the Chicago legal landscape and a track record of success in both civil and criminal matters, O’Mara & O’Callaghan stands ready to be your fearless champion. ⚖️📉💼🏙️🛡️