Milwaukee, WI Commercial Litigation Attorneys

When a business dispute escalates beyond negotiation, the financial stakes—and your company’s future—call for attorneys who try cases. GRGB’s commercial litigation team has spent nearly six decades representing Wisconsin businesses in complex B2B disputes, from contract breaches to trade secret theft to shareholder conflicts.

Commercial litigation involves legal disputes between businesses, and typically arises from broken contracts, ownership conflicts, misappropriated trade secrets, or insurance denials. GRGB’s Milwaukee-based team includes AV Preeminent-rated and Super Lawyer-recognized attorneys who prepare complex commercial matters for trial, whether the case ultimately settles or goes to verdict.

What Does a Commercial Litigation Attorney Handle?

A commercial litigation attorney represents businesses in disputes that arise from commercial activity, such as contracts, partnerships, corporate governance, trade secrets, and competitive practices. These are not small claims or individual consumer matters. They are high-stakes conflicts between business entities where the outcome can reshape ownership, liability, and financial position for years.

Civil caseloads in the federal system have been growing. U.S. district courts received 347,991 civil case filings in fiscal year 2024, a 22 percent increase from the prior year, with diversity of citizenship filings—which often involve parties from different states—rising 46 percent to 159,732 cases. These figures cover all federal civil litigation rather than commercial disputes specifically, but they reflect a broader environment in which businesses are increasingly likely to find themselves in court.

Business Disputes vs. Civil Litigation: Key Differences

Commercial litigation and civil litigation overlap in some areas, but the distinction matters. Civil litigation is the broader category—it includes any non-criminal dispute between private parties, whether those parties are individuals, businesses, or both. Commercial litigation is narrower and more focused.

What makes a dispute “commercial”:

• Business entity involvement: At least one party is a corporation, LLC, partnership, or other business entity.
• Commercial origin: The dispute arises from business activity—transactions, contracts, ownership, competition, or fiduciary obligations.
• Complex discovery: Commercial cases often involve extensive financial records, digital communications, accounting analysis, and testimony from industry witnesses.
• Venue considerations: Cases may be filed in an appropriate Wisconsin circuit court, which may include Milwaukee County, or in federal court where federal question or diversity jurisdiction exists. Contractual forum-selection and arbitration clauses can control where a dispute is heard.

A business owner in a contract dispute with a vendor, a shareholder conflict with a co-owner, or a trade secret theft by a former employee belongs on this page. An individual with a personal injury claim or an insurance dispute as a consumer belongs on the civil litigation side. GRGB handles both—but the strategies, the stakes, and the legal frameworks differ.

Case Types GRGB Handles in Commercial Litigation

• Contract litigation: Breach of contract, enforcement actions, non-compete agreement disputes, and franchise disagreements. Wisconsin evaluates restrictive covenants under Wis. Stat. § 103.465, which applies close scrutiny and can render an unreasonable covenant unenforceable rather than narrowing it.
• Partnership disputes and business dissolutions: Conflicts between business partners over management, profits, or the decision to wind down operations.
• Owner and shareholder disputes: Minority owner oppression, deadlock, and conflicts over corporate direction or distributions. The available claims and remedies differ depending on whether the company is a corporation, a statutory close corporation, an LLC, or a partnership, and whether the claim belongs to the owner directly or to the entity.
• Breach of fiduciary duty: Claims against officers, directors, managers, or members. The duties owed, and to whom they are owed, depend on the entity type, the governing agreement, and the role of the person involved.
• Trade secret misappropriation: Protected under the Wisconsin Uniform Trade Secrets Act, Wis. Stat. § 134.90, which authorizes injunctive relief and damages for actual loss and unjust enrichment. Where a violation is willful and malicious, § 134.90(4)(b) permits punitive damages not exceeding twice the compensatory award, and attorney fees are available in defined circumstances. Approximately 1,300 trade secret cases were filed in federal courts in 2024.
• Insurance coverage litigation: Disputes with commercial insurers over denied claims and policy interpretation, and separately, claims of bad-faith conduct. A coverage dispute does not by itself establish bad faith; the two involve different elements and different proof.
• Product liability defense: Representing manufacturers, distributors, and sellers against claims that a product caused injury or property damage. Wisconsin’s product liability framework appears at Wis. Stat. § 895.047, which addresses defect categories, seller and distributor liability, and available defenses.
• Civil RICO claims: Federal claims alleging patterns of racketeering activity in a business context, which require injury to business or property and proof of an enterprise, a pattern, and qualifying predicate acts.
• Business torts: Tortious interference with contracts or business relationships, unfair competition, and related claims, each with its own elements and recognized privileges.
• Debt collection litigation: Pursuing or defending collection actions tied to commercial obligations, including guaranties, secured transactions, and account claims.

Trial-Ready Representation: Why GRGB for Your Business Dispute?

GRGB is a trial firm that has been litigating complex commercial disputes in Wisconsin since 1968. The firm prepares commercial matters for verdict rather than treating trial as a remote possibility, and it is equipped to try a case when a resolution cannot be reached.

Credentials in Commercial Litigation

The firm holds a U.S. News & World Report Second Tier ranking in Commercial Litigation for the Milwaukee metropolitan area, the Quality Business Award for Best Business Law in Milwaukee, and recognition among the National Trial Lawyers Top 100. GRGB’s commercial litigation attorneys include practitioners rated AV Preeminent by Martindale-Hubbell and recognized as Super Lawyers, with practices centered on complex commercial and real estate disputes.

What Does “Trial-Ready” Really Mean for Your Business?

Most commercial disputes settle before trial. Settlement outcomes are shaped by many factors, including the strength of the evidence, the exposure each side faces, the cost of continued litigation, and each party’s assessment of how a trial would likely go.

GRGB’s trial orientation is a deliberate strategic posture. The firm was founded by trial lawyers, built around courtroom advocacy, and continues to staff its commercial litigation practice with attorneys who try cases.

The firm practices in both Wisconsin state courts and the U.S. District Court for the Eastern District of Wisconsin. GRGB’s office at 330 East Kilbourn Avenue sits within walking distance of both the federal courthouse at 517 E. Wisconsin Avenue and the Milwaukee County Courthouse at 901 N. 9th Street.

How Wisconsin Commercial Litigation Works: From Dispute to Resolution

The commercial litigation process in Wisconsin generally follows a structured path from initial dispute through trial or settlement, though individual cases vary considerably. Understanding each phase helps business owners make informed decisions about timing, cost, and strategy.

The Commercial Litigation Process in Wisconsin

• Pre-litigation: Your attorney reviews contracts, gathers evidence, and evaluates settlement viability. Demand letters are sent or responded to. GRGB uses this phase to build trial preparation from day one, even while pursuing a negotiated resolution.
• Filing: A complaint is filed in an appropriate Wisconsin circuit court, or in federal court where jurisdiction exists. Diversity jurisdiction generally requires complete diversity of citizenship—no plaintiff sharing citizenship with any defendant—and more than $75,000 in controversy, exclusive of interest and costs. Citizenship is determined differently for individuals, corporations, LLCs, and partnerships, and identifying every owner’s citizenship matters in LLC and partnership disputes.
• Response: Under Wis. Stat. § 802.06(1)(a), a defendant generally must serve an answer within 20 days after service of the complaint. That period increases to 45 days where the defendant is an insurance company, where a cause of action is founded in tort, or where the state or a state agency, officer, employee, or agent is involved. Stipulations, court orders, method of service, and removal to federal court can all change the timeline. Failure to respond can result in a default judgment.
• Discovery: Both sides exchange documents, take depositions, serve interrogatories, and retain experts where appropriate. This is typically the longest phase, and the quality of discovery work directly affects trial preparation.
• Motion practice: Summary judgment motions, motions to compel discovery, and dismissal motions shape the case before trial. GRGB actively uses pretrial motions to narrow issues and strengthen the client’s position.
• Settlement: Can occur at any stage, and most commercial cases resolve before trial.
• Trial: Jury or bench trial. GRGB prepares every commercial case as if it will be tried to a verdict.
• Appeal: Post-verdict review through the Wisconsin Court of Appeals or, in federal cases, the Seventh Circuit Court of Appeals.

Timeline and What to Expect

The ranges below are practice observations rather than legal rules. Actual timing depends on judicial scheduling, the volume of electronically stored information, expert discovery, injunction proceedings, bankruptcy stays, and whether the matter is diverted to arbitration.

• Simple contract disputes: Often six to twelve months to resolution, particularly when settlement is viable.
• Complex multi-party commercial disputes: Frequently eighteen to thirty-six months or longer, especially when extensive discovery, multiple motions, and trial preparation are involved.
• Injunctive relief cases: Courts can act quickly where the facts warrant, which matters in trade secret and non-compete disputes. Emergency relief is not automatic: a party seeking a temporary restraining order or temporary injunction generally must show a likelihood of success, irreparable harm, the absence of an adequate remedy at law, and a favorable balance of harms, and the court may require security.

Two Wisconsin provisions set deadlines that matter for businesses considering litigation. Under Wis. Stat. § 893.43, many contract claims must be brought within six years of accrual, though different periods can apply to sales of goods under the UCC, to claims characterized as tort or statutory claims, and where a contract shortens the period by agreement. Trade secret claims under § 134.90 carry a separate deadline: Wis. Stat. § 893.51(2) requires the action to be commenced within three years after the misappropriation is discovered or should have been discovered through reasonable diligence, and treats a continuing misappropriation as a single claim. Missing an applicable deadline can bar recovery regardless of the strength of the underlying claim, so confirming which period applies is worth doing early.

When Should a Business Choose Arbitration vs. Litigation?

Many commercial contracts include mandatory arbitration clauses, and GRGB handles disputes in both forums. Arbitration may be faster and more private than litigation, though that is not always the case—arbitration can involve substantial discovery, significant forum and arbitrator fees, and lengthy proceedings, and confidentiality depends on the agreement and the forum’s rules. Litigation offers a defined procedural framework, the option of a jury, a public record, and broader discovery tools, along with fuller appellate rights.

The right forum depends on the dispute. GRGB evaluates every commercial matter strategically—considering the contract terms, the relationship between the parties, the amount at stake, and the client’s long-term business objectives—before recommending a path forward. Where a contract contains an arbitration clause, courts may still be asked to decide whether an agreement exists, who is bound by it, whether the dispute falls within its scope, and whether an award should be confirmed or vacated.

Insurance Coverage Litigation and Product Liability Defense

Two categories of commercial litigation deserve specific attention because they affect Wisconsin businesses with particular frequency: insurance coverage disputes and product liability defense.

Insurance Coverage Disputes — When Your Insurer Won’t Pay

Insurance coverage litigation arises when a business and its insurer disagree over whether a loss is covered under the policy. Common triggers include denial of business interruption claims, refusal to cover liability exposure from lawsuits or regulatory actions, and delay in processing claims. Bad faith is a separate claim with its own elements, and the fact that an insurer denied coverage does not by itself establish it.

Insurers employ sophisticated in-house legal teams and outside counsel to defend coverage denials. Businesses need equally prepared advocates. In third-party liability matters, Wisconsin generally evaluates an insurer’s duty to defend under the four-corners rule, comparing the allegations of the complaint against the terms of the policy. Other coverage questions—including the duty to indemnify, the application of exclusions and conditions, notice, and allocation—can require a broader factual and legal analysis. Insurance contracts are interpreted under ordinary contract principles, with unambiguous language enforced as written and genuine ambiguity generally construed against the insurer. GRGB represents Wisconsin businesses in coverage disputes against commercial insurers across the state.

Product Liability Defense for Businesses

When a manufacturer, distributor, or retailer is sued over a product that allegedly caused injury or property damage, the case falls under product liability defense—a commercial litigation matter with potentially significant financial exposure. Wisconsin’s statutory framework at Wis. Stat. § 895.047 governs claims based on manufacturing, design, and warning defects, and addresses seller and distributor liability, product alteration and misuse, and other defenses.

GRGB’s commercial litigation practice draws on a trial-ready foundation built over more than 55 years of Wisconsin courtroom experience.

Businesses facing any of these disputes benefit from early legal counsel. The earlier GRGB is involved, the stronger the evidentiary foundation—and the broader the range of strategic options available. Contact the firm at 414-271-1440 to discuss your commercial legal matter.