Welcome to Cotsirilos, Tighe, Streicker, Poulos & Campbell, LTD

Cotsirilos, Tighe, Streicker, Poulos & Campbell, LTD

Elite Civil and Criminal Litigation


The Cotsirilos Firm is an elite white collar criminal defense and complex civil litigation boutique with a national reputation for excellence and a proven track record of success. Founded by legendary criminal defense attorney George J. Cotsirilos, the Cotsirilos Firm brings a depth of sophistication, trial experience, judgment, and problem-solving skills to each representation that is unmatched by other boutique firms. For nearly 70 years, the firm has successfully represented clients in high-profile criminal, civil, and enforcement matters, from multi-million-dollar commercial litigation disputes to white-collar criminal cases and investigations initiated by the United States Department of Justice, United States Attorney’s Offices, the Securities and Exchange Commission, and other regulatory bodies around the country.

We represent clients from all walks of life, from high-level Fortune 50 corporate executives, doctors, lawyers and real estate developers to municipalities, non-profits, labor unions, and small businesses, whether as witnesses, subjects, targets, or defendants in investigations and prosecutions. Similarly, we represent clients from a variety of industry sectors, including healthcare, pharmaceutical, oil and gas, aviation, securities, banking, manufacturing, government, construction, real estate, food and beverage, and hospitality. We have helped clients with matters ranging from counseling them on their rights in a partnership to defending them against multimillion dollar fraud claims and representing them at trial and on appeal when their lives and fortune are on the line.

The Cotsirilos Firm is proud to have had three current or former federal judges among its ranks, with most matters staffed by former Assistant U.S. Attorneys. From the early 1980s to the present, our attorneys have been involved in nearly every major investigation and high-profile prosecution in Chicago, and they have tried many of the most significant cases in the Northern District of Illinois and throughout the country.

We are sad to note the recent passing of James R. Streicker. Jim was a member of the firm from 1980 until his passing in September 2023. Known for his unique, low-key, and understated style, Jim had a profoundly positive effect on his clients, whom he guided through some of the most difficult times of their lives. Eschewing bombast and hyperbole, Jim was a man of few, carefully chosen words, and when he spoke, people listened. Always conducting himself with the honesty and integrity that has been the hallmark of the Cotsirilos Firm since its founding, Jim won respect and admiration from colleagues in the defense bar, adversaries in the courtroom, and judges who presided over his cases.

Practice Areas

As a group of both former federal prosecutors and career defense attorneys, the Firm handles the most sensitive and complex matters, often involving high-profile cases and clients.

We represent clients in state and federal courts around the country in civil cases, including fraud and breach of fiduciary duty claims, trade secret misappropriation, and class action defense, among others.

The Firm conducts internal investigations on behalf of corporations in a variety of industries –healthcare, labor unions, government contractors, and municipalities.

Our litigators have deep experience handling matters involving the False Claims Act and qui tam whistleblowers, including matters involving parallel civil and criminal investigations by state and federal agencies.

The Firm represents clients in regulatory investigations and enforcement actions brought by the Securities and Exchange Commission, the Commodities Futures Trading Commission and their state counterparts.

The firm represents doctors, pharmacists, mortgage originators, lawyers and others in disciplinary and regulatory matters before professional licensing and ethics boards.

Collectively, the Firm’s lawyers have represented clients in over 100 civil and criminal appeals before the state and federal appellate courts.