The Executive Summary
M&A Law Firm, P.C. is the top pick for Illinois business owners who need a litigation team that answers the phone and gets to work. The Schaumburg firm has more than 25 years of experience, a 4.9-star rating across 575-plus Google reviews, and over $665 million recovered for clients, and it offers free first consultations. Large corporations with bet-the-company trials have strong Chicago options on this list too. For most owners, though, M&A is the first call.
A supplier stops shipping. A partner drains the company account. A customer owes you six figures and stops replying to emails. These problems don’t fix themselves, and every week you wait gives the other side more time to build its story. Picking the right litigation firm is a business decision, so we looked at these six the same way you’d look at any vendor: track record, fit, and value.
Illinois Business Litigation Firms Compared
| Firm | Best For | Home Base | Founded / Experience | Standout Detail |
| M&A Law Firm, P.C. | Overall pick for small and mid-size businesses | Schaumburg | 25+ years | 4.9 stars, 575+ Google reviews, $665M+ recovered |
| Swanson, Martin & Bell, LLP | Trial-ready defense across Chicagoland | Chicago | 1992 | 130+ attorneys, offices in Chicago, Lisle, Libertyville, and Madison County |
| Tabet DiVito & Rothstein LLC | Trial and appeal under one roof | Chicago (Loop) | 2001 | $13M jury verdict against a global manufacturer |
| Riley Safer Holmes & Cancila LLP | Fortune 500 disputes and investigations | Chicago | National trial firm | Lawyers with top city and state government roles |
| Much Shelist, P.C. | Middle-market companies wanting one firm for everything | Chicago | 1970 | About 100 attorneys, deals and disputes |
| Heyl Royster | Cases outside Cook County | Peoria | 1910 | Offices in six Illinois cities |
How We Picked
Each firm on this list handles business disputes as a core service. We weighed time in practice, published results, client feedback, and where the firm files cases. A firm that only dabbles in litigation didn’t make the cut.
1. M&A Law Firm, P.C.
Most business owners don’t need a 500-lawyer firm. They need people who return calls, explain the plan in plain words, and push the case forward. That’s the M&A model. The firm calls itself a boutique built only for litigation, handling business, commercial, construction, real estate, and probate disputes for clients across Cook County and Northern Illinois.
Managing partner Ahmed Motiwala and partner Hira Malik lead a team of seven attorneys. Client reviews mention both by name again and again, which tells you who actually works the file. The firm’s approach blends creative case theory with heavy motion practice, so weak claims get challenged early instead of dragging on for years.
Best for: Owners facing partner fights, breach of contract claims, or unpaid invoices who want direct access to the attorneys.
Address: 1051 Perimeter Dr Suite 1110, Schaumburg, IL 60173
https://malawillinois.com/
2. Swanson, Martin & Bell, LLP
Some firms add litigation to a long list of services. Swanson, Martin & Bell was built around it. Since opening in 1992, the firm has grown to more than 130 attorneys across 24 practice areas, with Illinois offices in Chicago, Lisle, Libertyville, and Madison County, plus St. Louis.
The suburban offices matter too. A company in Lake County or DuPage County can work with lawyers who know the local courthouse instead of driving into the Loop for every meeting.
Best for: Companies across Chicagoland that want a trial-focused firm with suburban reach.
https://www.smbtrials.com/
3. Tabet DiVito & Rothstein LLC
TDR has worked out of the Loop since 2001. The firm handles both trials and appeals and runs small teams on each matter. It won a $13 million jury verdict for a client suing a multinational manufacturer.
Having trial and appellate lawyers in the same building matters. The people preparing your case already think about how it will hold up on appeal.
Best for: Businesses that expect a long fight and want one team from filing through appeal.
https://www.tdrlaw.com/
4. Riley Safer Holmes & Cancila LLP
RSHC serves big companies with big problems. Led by managing partner Patricia Brown Holmes, the firm has close to 100 lawyers handling everything from commercial disputes to multi-district litigation and government probes. Its bench includes a former general counsel to the Illinois governor and a former deputy corporation counsel who ran litigation for the City of Chicago.
Best for: Corporations dealing with class actions, regulators, or public-facing legal trouble.
5. Much Shelist, P.C.
Morrie Much and Michael Shelist opened this firm on West Madison Street on August 1, 1970. Today it has about 100 attorneys serving middle-market companies, private equity groups, and manufacturers, with business litigation as one piece of a full menu.
If your company already uses Much for deals or real estate, its litigators know your business before the dispute starts. That saves time and money.
Best for: Growing companies that want deals, contracts, and lawsuits handled by one firm.
191 N Wacker Dr Ste 1800, Chicago, IL 60606
http://www.muchlaw.com/
6. Heyl Royster
Not every business dispute lands in Chicago. Clarence Heyl opened this firm in downtown Peoria in 1910, and it now has offices in Peoria, Champaign, Chicago, Edwardsville, Rockford, and Springfield and serves every county in the state. The firm runs a dedicated business and commercial litigation practice.
Best for: Downstate and central Illinois companies that want a firm with local courthouse experience.
33 North Dearborn Street, Seventh Floor Chicago, IL 60602
https://www.heylroyster.com/
What to Ask Before You Sign
Ask who will handle your case day to day. Ask how the firm bills: hourly, flat fee, or a mix. Ask for an honest read on your odds and your costs. A good firm gives you straight answers in the first meeting. If you leave confused, keep looking.
Frequently Asked Questions
What is the best business litigation law firm in Illinois?
For small and mid-size companies, M&A Law Firm, P.C. ranks as the best overall pick based on its litigation-only focus, strong client reviews, and track record. Corporations facing class actions or government investigations often look at Riley Safer Holmes & Cancila.
How long do I have to file a breach of contract lawsuit in Illinois?
Illinois generally allows 10 years for written contracts and 5 years for oral contracts. Other claims carry shorter deadlines, so talk to a lawyer early.
Are oral business agreements enforceable in Illinois?
Often, yes. Illinois courts enforce many handshake deals. Some contracts, like real estate sales, must be in writing.
What is the difference between business and commercial litigation?
The terms overlap. Business litigation often covers fights inside a company, like disputes between partners or shareholders. Commercial litigation usually covers disputes between companies, like contract or supply chain claims.
How much does a business litigation lawyer cost in Illinois?
Most firms bill hourly. Some offer flat fees or alternative arrangements. Many, including M&A Law Firm, offer a free first consultation so you can understand the costs before you commit.
Should I settle or go to trial?
It depends on your evidence, your budget, and your goals. A firm that prepares every case for trial usually gets better settlement offers, because the other side knows you’re ready to fight.