Business Litigation / Legal Malpractice Lawyers

WHO WE ARE

Our top four lawyers have spent more than 123 years combined winning business lawsuits, most while working for large Chicago firms. We now offer this unique experience in a fifteen lawyer boutique.

If you have a business litigation emergency or a claim about insurance coverage, shareholder and LLC-member duties, commercial loans, supply or service contracts, construction contracts, commercial real estate, intellectual property agreements, or legal malpractice, get in touch with us now for a free initial consultation.

The American Bar Association published our 600-page book on Handling the Business Emergency.

Our partner Jefferey Ogden Katz was named a Rising Star by SuperLawyers magazine 5 years in a row.

Review our work and judge for yourself whether you think we can help you.

Learn More About Us

INTERESTING CASES

Patterson Wins $32.3 Million Verdict

On behalf of RevoLaze, LLC, Patterson Law Firm won a $32,262,488.50 legal malpractice jury verdict against attorney Mark Hogge and Dentons. This is a win for RevoLaze against a firm that claims to be largest law firm in the world. The trial took place in Cleveland, Ohio and lasted three weeks. “The verdict did not […]

Insurance Coverage: Patterson Wins Where Prior Law Firm Fails

A Path to Victory: One Educational Training Center’s Road to Justice. The Patterson Law Firm, LLC won an insurance coverage jury verdict for $534,000 in Cook County on June 16, 2011. The case involved the burglary of a company offering comprehensive software education training in July of 2003. The burglary resulted in a loss of […]

Bank Breach of Contract: Patterson Wins Where Prior Law Firm Fails

Three months before the trial, a New York law firm represented a guarantor being sued for $8 million. The case was linked to the largest mixed-use real estate development project in the world. The lawyer who hired us said that “the case was an unmitigated disaster and that they needed us to mitigate it.” Another […]

Gambling Friendship Gone Wrong After a Breach of Oral Contract

Michael Haeberle and Jack Battaglia represented a plaintiff in a dispute over loans given for gambling during a weekend trip to Las Vegas. The plaintiff and the defendant were close friends, and they shared an interest in gambling, which they often did together. During these outings, the defendant often asked the plaintiff to loan him […]

Winning for Lloyds: The Magic of New Technology

The Magic of New Technology. In federal court, we represented a small insurance brokerage company backed by Lloyds of London that was sued by a large insurance company represented by a large law firm. The large company claimed that our client, the brokerage company, had failed to enact rate increases for a force-placed insurance program […]

When Real Estate Partners Collide

A general partner in a real estate partnership sought our help. His limited partners obtained a restraining order to temporarily stop the sale of partnership condominiums to raise funds to pay $2.5 million in partnership debts, some of which were owed to the general partner. The limited partners then sought a preliminary injunction to prevent […]

View All Cases

WHAT WE DO

PRACTICE AREAS

Legal Malpractice

While attorney mistakes do not always constitute legal malpractice, clients are entitled to adequate representation.

Shareholder Disputes

What happens when one shareholder secretly competes with the corporation in which she is a shareholder

Breach of Contract

Breach of contract is one of the most common disputes among businesses.

Unfair Competition

Unfair competition usually is a tort action that has triggered financial hurt to a business through misleading or wrongful practices

Trading and Financial Malpractice

Stock, option, and commodities trading can result in several different types of claims

Trademark Infringement

We offer a wide range of trademark services including protection, enforcement and dispute resolution. We stay abreast of the trends in technological and business advancements.

Sales of Goods

The sales laws of each state primarily govern transactions for the sale of goods.

Teaching

Tom Patterson has authored the book entitled "Handling the Business Emergency: temporary restraining orders and preliminary injunctions," published by the American Bar Association

Intellectual Property/Technology

We offer a wide range of trademark services including protection, enforcement and dispute resolution.

Insurance Coverage and Contractual Indemnity

We have extensive experience working with our clients on insurance and contractual indemnity issues.

Employment, Commission And Brokerage Claims

We help employees preserve their civil rights and sales representatives recover payment for services rendered

Data Privacy and Cybersecurity Practice

Our Privacy and Cybersecurity practice operate at the intersection of technology and law.

View All Practice Areas

Meet Our Team

“I am extremely grateful for everything and extremely satisfied with the services. Your firm has made a… difficult situation manageable, and I’ve learned a lot.”

I am extremely grateful for everything and extremely satisfied with the services

“I was completely satisfied with the results of the lawsuit. You…did a great job, and I got the results I wanted.”

I was completely satisfied with the results of the lawsuit

“We’re going to have a toast tonight and we’ll definitely toast the two best attorneys in Illinois. Thanks so much to both of you, for all your hard work… Thanks for believing in us. We love you guys…”

We’re going to have a toast tonight

"Thanks much for getting on this with enthusiasm. It is SO… RARE IN ATTORNEYS…"

Thanks much for getting on this with enthusiasm

KEEP UP WITH OUR BLOG

Time Off Before Uniform Reporting for Service Under USERRA

Guaranties: What Happens When A Manager Or Partner Leaves A Firm?

Enforcement of COVID-19 Related Fraud Increasing

View All Posts

Pursuant to Rule 1.18 of the Illinois Rules of Professional Conduct, Patterson Law Firm LLC, and its attorneys, owe a duty of confidentiality to prospective clients. However, no attorney-client relationship will be formed until an engagement is signed by all parties pursuant to Illinois Rule of Professional Conduct 1.5.