Boston · High-stakes litigation

Business litigation

Fiduciary conflicts, trade secrets, shareholder fights, and balance-sheet litigation where control, reputation, and enterprise value are on the line—in the Business Litigation Session and federal court.

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50+

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$28M+

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Landmark Massachusetts matter

Trusted Boston advocates

Denner Lamanna Business litigation

Fiduciary conflicts, trade secrets, shareholder fights, and balance-sheet litigation where control, reputation, and enterprise value are on the line—in the Business Litigation Session and federal court. Denner Lamanna represents clients in business disputes where the outcome reshapes companies—not just resolves a single invoice. That includes fiduciary duty claims, trade secret misappropriation, partnership dissolution, and contract litigation with fraud or punitive theories.

We advocate for you

Trial depth for business litigation

Shareholder fights, trade-secret theft, and fiduciary breaches can freeze assets, destroy enterprise value, and end careers overnight. Massachusetts Business Litigation Session schedules move fast—and unprepared parties lose injunctive battles in the first two weeks. Once a TRO expires or evidence walks out the door with a departing employee, recovery may be impossible even if you ultimately win on the merits. Employee departures triggering non-compete and trade-secret disputes move on emergency timelines. Forensic imaging, customer list tracing, and ex parte relief determine whether a client keeps market share or loses it permanently. Post-2018 non-compete reform changed enforcement analysis. Both plaintiffs seeking injunctions and executives responding to cease-and-desist letters need current statutory guidance—not boilerplate templates. Denner Lamanna follows a disciplined process—Rapid case assessment: We evaluate fiduciary duties, contract rights, emergency injunctive needs, and forum—BLS, Superior Court, or federal court—within days of engagement. Emergency & preliminary relief: TRO and preliminary injunction practice to preserve assets, customer relationships, and confidential information when departures or breaches threaten irreparable harm. Focused discovery: Forensic imaging, financial tracing, depositions, and expert retention under BLS or federal discovery plans designed for commercial complexity. Trial preparation: Bench and jury trials with financial and technical experts—shareholder oppression, trade secrets, fraud, and contract disputes. Judgment enforcement & appeal: Post-judgment collection, Appeals Court review, and coordination when parallel criminal or regulatory exposure exists. Institutional defendants and opposing counsel deploy delay, denial, and resource advantages. Business litigation matters deserve trial-ready counsel from Boston who builds for courtroom advocacy—not volume docket management.

Massachusetts context

Commercial disputes can cost more than the contract value

The Business Litigation Session and specialized commercial dockets move faster than general civil tracks—TRO practice often decides outcomes.

BLS

Business Litigation Session — Suffolk & other counties

Mass. Superior Court

c. 93A

Consumer protection & business unfair practices

G.L. c. 93, § 9

§ 24L

Non-competition agreement statute (2018 reform)

G.L. c. 149, § 24L

D. Mass.

Federal commercial & IP disputes — Boston

U.S. District Court

What we pursue

  • Business control and ownership stakes
  • Trade secret and competitive injury
  • Contract and fraud damages
  • Chapter 93A multiple damages
  • Injunctive relief preserving operations
  • Judgment collection and appeal

Past results and statistics vary by case. This is general educational information—not a guarantee of outcome.

Practice scope

What we handle in business litigation

Denner Lamanna accepts high-stakes business litigation mandates in Massachusetts state court, federal court in Boston, and appellate forums.

What we handle

  • Fiduciary duty and shareholder disputes
  • Trade secrets and restrictive covenants
  • Partnership and LLC dissolution
  • Contract, fraud, and commercial tort claims
  • Business Litigation Session trials
  • District of Massachusetts commercial cases
  • Shareholder oppression and freeze-out litigation
  • LLC and partnership dissolution and buyout disputes
  • Trade secret misappropriation and inevitable disclosure
  • Non-compete and non-solicitation enforcement and defense
  • Breach of fiduciary duty by directors and officers
  • Commercial fraud and Chapter 93A claims
  • Contract breach and specific performance
  • Unfair competition and tortious interference
  • Business tort conspiracy and aiding-and-abetting theories
  • Emergency TRO and preliminary injunction practice
  • Accounting and constructive trust remedies
  • Appeals from BLS and commercial judgments

Common commercial outcomes

  • Fiduciary & shareholder
  • Trade secrets & contracts
  • Trial & BLS
  • Business Litigation Session
  • Massachusetts Superior Court
  • Fiduciary duty and shareholder disputes
  • Trade secrets and restrictive covenants
  • Partnership and LLC dissolution

Discuss your business litigation confidentially

Delaying counsel can hurt both your position and your case. If you face business litigation exposure, contact Denner Lamanna for a confidential review.

Request confidential review (617) 886-5188

Important steps

Do not wait. Here is what to do right now.

Taking the right steps early protects your health, your rights, and your record.

1

Contact us for a confidential review

Tell us what happened. We evaluate deadlines, forums, and preservation needs quickly.

No obligation.

2

Preserve evidence and documents

Records, communications, and witness information degrade within days or weeks.

Act before narratives harden.

3

Do not sign or agree without counsel

Waivers, releases, and statements to opposing parties can permanently limit your options.

Early counsel changes leverage.

Why Denner Lamanna

Trial depth for consequential cases

You bring your matter. We bring Massachusetts trial experience, appellate depth, and staffing built for the courtroom.

Trial-ready staffing

Expert and investigator investment from intake—not after negotiations stall.

State, federal & appellate

One team from Boston through Massachusetts courts, Boston federal court, and the First Circuit.

High-stakes focus

Complex criminal, civil rights, injury, family, business, military, and appellate mandates.

Confidential intake

No charge to inquire. Early counsel protects evidence and deadlines.

BLS and federal commercial experience

We appear in the Massachusetts Business Litigation Session and District of Massachusetts for fiduciary, contract, and trade-secret disputes requiring sophisticated counsel from the first case management conference.

Emergency injunctive capability

Trade secret and non-compete cases are often decided in the first weeks. We prioritize TRO practice, forensic preservation, and rapid hearing preparation.

Trial and appellate integration

Commercial judgments worth appealing require preservation at trial. Our appellate practice informs how financial and evidentiary issues are framed for Massachusetts and First Circuit review.

Our process

How we handle business litigation

A disciplined sequence from first contact through trial or resolution—built for high-stakes Massachusetts and federal litigation.

Step 01

Rapid case assessment

We evaluate fiduciary duties, contract rights, emergency injunctive needs, and forum—BLS, Superior Court, or federal court—within days of engagement.

Step 02

Emergency & preliminary relief

TRO and preliminary injunction practice to preserve assets, customer relationships, and confidential information when departures or breaches threaten irreparable harm.

Step 03

Focused discovery

Forensic imaging, financial tracing, depositions, and expert retention under BLS or federal discovery plans designed for commercial complexity.

Step 04

Trial preparation

Bench and jury trials with financial and technical experts—shareholder oppression, trade secrets, fraud, and contract disputes.

Step 05

Judgment enforcement & appeal

Post-judgment collection, Appeals Court review, and coordination when parallel criminal or regulatory exposure exists.

How we help

Counsel at every stage

01

Fiduciary & shareholder

Duty-of-loyalty, oppression, and governance disputes among owners and executives.

02

Trade secrets & contracts

Non-compete, confidential information, and commercial fraud claims.

03

Trial & BLS

Complex commercial trials in Massachusetts specialized business courts and federal forum.

In depth

Massachusetts business litigation — what you should know

Educational overview of local law, data, and litigation context—not legal advice for your specific situation.

Shareholder and LLC control fights in Massachusetts

When partners become adversaries, oppression, freeze-out, and breach of fiduciary duty theories interact with operating agreements and buy-sell provisions. Massachusetts courts may order buyouts, dissolution, or damages—but only if the record supports reasonable expectations of minority owners.

Denner Lamanna litigates control disputes in the BLS and Superior Court with trial calendars that do not pause for informal negotiation.

Trade secrets and the first two weeks after departure

Employee departures triggering non-compete and trade-secret disputes move on emergency timelines. Forensic imaging, customer list tracing, and ex parte relief determine whether a client keeps market share or loses it permanently.

Post-2018 non-compete reform changed enforcement analysis. Both plaintiffs seeking injunctions and executives responding to cease-and-desist letters need current statutory guidance—not boilerplate templates.

Overview

Boston counsel for business litigation

Denner Lamanna represents clients in business disputes where the outcome reshapes companies—not just resolves a single invoice. That includes fiduciary duty claims, trade secret misappropriation, partnership dissolution, and contract litigation with fraud or punitive theories.

Massachusetts Business Litigation Session cases demand early case-management discipline, focused discovery, and counsel comfortable with sophisticated financial and technical evidence. We staff accordingly.

Federal and state coordination

Many commercial disputes involve parallel proceedings, arbitration clauses, or removal questions. Strategy must account for forum, injunctive relief, and appellate preservation from the first complaint or answer.

Control fights in closely held Massachusetts companies

When business partners become adversaries, fiduciary duty law and operating agreements define available remedies—injunction, buyout, dissolution, or damages. Denner Lamanna litigates control disputes where livelihoods and enterprise value require trial-ready counsel in the BLS and Superior Court.

Trade secrets and the first fourteen days

Employee departures triggering non-compete and trade-secret disputes move on emergency timelines. Forensic preservation, ex parte relief, and preliminary injunction hearings often determine whether a client keeps market share—or loses it permanently.

Specialized counsel

Business litigation practice areas

In-depth resources for specific matters—each staffed for trial and appellate advocacy from our Boston office.

Business litigation Shareholder disputes

Shareholder, LLC, and partnership litigation in Massachusetts—oppression, fiduciary breach, and control fights in closely held companies.

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Business litigation Trade secrets & non-competes

Trade secret misappropriation and non-compete enforcement in Massachusetts—TROs, injunctive relief, and Business Litigation Session trials.

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Business litigation Fiduciary duty

Fiduciary duty litigation in Massachusetts—directors, officers, partners, and trustees in high-stakes business disputes.

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Business litigation Commercial fraud

Commercial fraud and unfair practices in Massachusetts—93A claims, misrepresentation, and punitive damages in business disputes.

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Business litigation Business Litigation Session

Complex commercial trials in the Massachusetts Business Litigation Session—accelerated schedules and sophisticated business disputes.

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Business litigation Contract disputes

Commercial contract litigation in Massachusetts—breach, specific performance, and damages in state and federal court.

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Business litigation c. 93A & contract disputes

Massachusetts Chapter 93A and commercial contract litigation—unfair practices, fraud, treble damages, and Business Litigation Session trials.

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Business litigation Injunctive relief & TRO practice

Emergency TRO and preliminary injunction practice in Massachusetts—trade secrets, non-competes, asset freezes, and Business Litigation Session relief.

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Our approach

Commercial disputes that define companies

We litigate for owners, executives, and closely held enterprises with trial posture from day one and appellate preservation built into the record.

01Control fightsShareholder, LLC, and partnership disputes with injunctive and fiduciary theories.
02Trade secretsRestrictive covenants, misappropriation, and competitive injury litigation.
03Trial forumsBusiness Litigation Session and District of Massachusetts experience.

Client stories

Real clients. Real advocacy.

Representative client feedback. Individual results vary; testimonials do not guarantee similar outcomes.

★★★★★

“Jeffrey Denner has taken on an impossible situation for me. Attorney Denner will be there for you 24/7, make certain all is in order, has a phenomenal staff and goes the distance for his clients.”

— Verified Client
★★★★★

“Jeff handled a case for my wife that wasnt really within the scope of his practice. He, and his associates, litigated her case with the utmost professionalism and kindness ive never encountered with any other lawyer or law firm.”

— Brian
★★★★★

“Jeff was unbelievable in helping me with a serious legal issue I was facing. He was responsive, intelligent, and informative. He clearly explained all of my options in a way that was easy for me to understand.”

— Kim
★★★★★

“Jennifer Lamanna is an outstanding attorney. She is smart, tough, and compassionate—a rare combination in high-stakes family litigation.”

— Verified Client

Where we serve

Boston & Massachusetts counsel

Boston-based counsel for Boston-area businesses and owners in the Business Litigation Session, Massachusetts Superior Court, and U.S. District Court for the District of Massachusetts—serving clients across New England and in coordinated multi-state disputes.

Boston Boston Cambridge Somerville Medford Brookline Newton Quincy Worcester Springfield Cape Cod Massachusetts statewide U.S. District Court — Boston First Circuit

Forums

Where these cases are litigated

Business Litigation Session Massachusetts Superior Court District of Massachusetts Massachusetts Appeals Court

When to contact us

  • A partner, shareholder, or key employee departed with clients or data
  • You received a cease-and-desist or demand letter threatening injunctive relief
  • A vendor or customer breached a contract with significant damages at stake
  • You suspect fraud, self-dealing, or oppression in a closely held company
  • You need counsel before filing or responding in the Business Litigation Session

FAQ

Frequently asked questions

Common questions about business litigation in Massachusetts and federal court.

What is the Massachusetts Business Litigation Session?

A specialized case-management track in Superior Court for complex commercial disputes, with accelerated schedules and judges experienced in business cases.

When should a company hire litigation counsel?

Before positions harden—especially when injunctive relief, asset freezes, or public filings could affect employees, customers, or financing.

Does the firm handle trade secret cases?

Yes. We litigate misappropriation, non-compete, and confidential-information disputes with trial-focused discovery and expert support.

What is the Business Litigation Session and why does it matter?

The BLS is Massachusetts' specialized commercial court track with accelerated schedules and judges experienced in business disputes. Preparation at the first case management conference is critical.

Are non-competes enforceable in Massachusetts after the 2018 reforms?

Sometimes—if they comply with statutory requirements including garden leave, scope limits, and procedural formalities. Both enforcement and defense require current statutory analysis.

How fast can I get a TRO against a departing employee?

If irreparable harm and likelihood of success are shown, courts can hear TRO motions on short notice—often within days. Speed of counsel engagement determines whether evidence remains available.

Can minority shareholders force a buyout?

Under appropriate Massachusetts oppression theories, courts may order buyouts or dissolution when majority conduct frustrates reasonable expectations.

Does the firm handle both plaintiff and defense commercial cases?

We primarily represent plaintiffs and select defense mandates where conflicts permit—especially in high-stakes fiduciary and control disputes.

Still have questions?

Contact Denner Lamanna for a confidential, no-obligation review.

Get answers now

See if we can help

Confidential business litigation intake with Boston trial and appellate counsel. No charge to inquire.

Request confidential review (617) 886-5188