prossnitzlaw - Oak Park, IL office in Oak Park, Illinois
prossnitzlaw - Oak Park, IL

prossnitzlaw - Oak Park, IL

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1014 Ontario St, Oak Park, Illinois, United States
32 Years of Practicing, since 1994
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Free Consultation +1 708-203-5747
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Law Offices of Howard Prossnitz is a premier Oak Park practice established in 1994, representing investors, retirees, and consumers nationwide in complex FINRA arbitrations, investment fraud recovery, Ponzi scheme litigation, and class actions.

National Securities Arbitration and Financial Fraud Advocacy in Oak Park

Experiencing financial loss due to broker misconduct, unauthorized trading, or fraudulent schemes can devastate a family's financial security and retirement plans. When financial advisors breach their fiduciary duties, seeking counsel from experienced financial and IP lawyers is vital to recovering lost capital. Located in the historic Frank Lloyd Wright District of Oak Park, Illinois, the Law Offices of Howard Prossnitz provides relentless, results-driven representation for individual investors, retirees, and commercial entities nationwide.

Principal attorney Howard B. Prossnitz brings over four decades of elite complex litigation experience. A graduate of Stanford Law School where he was on the Law Review and a member of Phi Beta Kappa at Haverford College, attorney Prossnitz began his career in 1976 representing corporate clients such as Allstate Insurance and McDonald's Corporation at Sonnenschein (now Dentons). In 1994, he established his Oak Park practice to focus exclusively on representing plaintiffs. If you need a lawyer who possesses deep institutional knowledge of the securities industry, attorney Prossnitz offers the tactical acumen necessary to hold Wall Street brokerages accountable.

Core Areas of Practice and Investor Protection

Holding negligent brokerage firms, rogue advisors, and deceptive corporations accountable demands rigorous forensic analysis and knowledge of securities statutes. As seasoned business litigation lawyers, the firm provides aggressive advocacy across core areas:

  • FINRA Arbitrations and Broker Misconduct: Most brokerage agreements mandate dispute resolution through FINRA. The firm represents defrauded investors in arbitrations involving unauthorized trading, unsuitable investment recommendations, churning, and failure to supervise.
  • Ponzi Schemes and Selling Away Claims: Fraudulent investment programs often involve brokers selling unauthorized private placements. Attorney Prossnitz focuses on pursuing claims against brokerage clearing firms that facilitated or failed to detect the fraud, securing substantial recoveries for victimized retirees.
  • Consumer and Investor Class Actions: The practice serves as counsel in consumer class actions addressing deceptive marketing, statutory privacy violations under the Illinois Biometric Information Privacy Act, defective warranties, and systemic bank overcharges.
  • Contract Disputes and Commercial Claims: As accomplished contract lawyers and business litigation attorneys, the office handles breach of contract and partnership disputes for business owners seeking decisive courtroom advocacy.

Why Clients Choose the Law Offices of Howard Prossnitz

Recognized nationwide for contributions to securities law, attorney Prossnitz serves on the Editorial Board of the Public Investors Advocate Bar Association Law Journal and has lectured on class action strategy at Chicago-Kent College of Law. Clients work directly with a veteran trial attorney rather than junior associates, ensuring dedicated strategic insight throughout every phase of dispute resolution.

Contingency-Fee Arbitration and Free Case Evaluation

Taking on well-funded financial institutions should never depend on your immediate liquidity. The firm handles FINRA arbitrations primarily on a contingency-fee basis, meaning clients owe no attorney fees unless a recovery is achieved. When you need to hire a business litigation lawyer or consult a dedicated securities fraud attorney, contact the Law Offices of Howard Prossnitz in Oak Park today to schedule a confidential and complimentary case review.


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Location & Access

Primary Address

Located in the historic Frank Lloyd Wright District of Oak Park, a charming and highly walkable community just outside Chicago.

Building Location

This is a custom-built office building completed in 2017, featuring a modern workspace and situated near the peaceful Austin Gardens Park.

Parking Details

The office provides a free surface parking lot specifically for customers, with additional public surface parking options available nearby.

Public Transit

Served by Pace Route 309 (Eastbound); nearest stop is at Lake & Forest.

Accessibility / Suite Access

Enter directly from the main street-level entrance of the building on Ontario Street. The law office occupies the main floor and is easily accessible.

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