Overview

The attorneys at O’Neil, Cannon, Hollman, DeJong & Laing S.C. focus on meeting the many needs of businesses and their owners. Our experienced attorneys work with businesses and their owners at all stages of the business life cycle, helping them start, grow, and transition their businesses. We also assist business owners with their personal legal needs, including tax and estate planning, and family law.

The firm’s practice groups include:

  • Litigation including business litigation, class-action litigation, appellate services, arbitration/mediation, plaintiff’s personal injury litigation, and family law.
  • Business Law including formation, organization, and choice of entities; shareholder, buy-sell, and operating agreements; corporate governance; commercial contracts, including e-commerce, software, technology, manufacturing, supply, distribution, leasing, and licensing contracts; and franchise/dealership agreements.
  • Mergers & Acquisitions including advising buyers and sellers, including private equity firms, and management teams, in asset and stock deals, mergers, divestitures, recapitalizations and restructurings, and management buyouts; and advising businesses and investors on securities compliance matters at the state and federal level, including drafting and reviewing private placement offerings and convertible debt instruments.
  • Banking, Receivership & Creditors’ Rights including receivership, corporate bankruptcy, commercial foreclosures, insolvency-related litigation, complex commercial collections, out-of-court corporate restructuring, and commercial loan transactions.
  • Tax Advice, Planning & Controversy including transactional tax and consulting, individual tax and succession planning, employee benefits and executive compensation tax, real estate tax, tax controversy, tax-exempt organizations and charitable giving, and state and local taxation.
  • Estate & Business Succession Planning including trust and estate administration, business succession planning, charitable planning, fiduciary representation, and probate.
  • Labor & Employment including representing the interests of management in discrimination or wrongful termination cases, labor and union matters such as collective bargaining and labor arbitration, litigating non-compete agreements, trade secrets claims and unfair competition matters, wage and hour litigation, employee benefits such as 401(k)/ERISA matters and matters involving executive compensation, defending claims and charges before EEOC, NLRB, DOL and numerous state agencies, and human resources matters such as disciplining and terminating employees, advising on accommodation and leave issues, drafting agreements, policies and procedures and providing supervisory training.
  • Inheritance Litigation & Will Contests including grounds for challenging a will, trust, beneficiary designation, or gift.
  • Family Law including divorce and legal separation.
  • Real Estate & Construction including real estate development and land use law, as well as construction law.

Because we know that businesses and their owners rely on attorneys during some of the most fulfilling—and frightening—times in their lives, we combine the experience and proficiency of a large firm with the personal approach of a local law firm.

Founded:
1973
Size:
46
Magnifying glass with star icon
Practice Areas:
16
Person outline with Best Lawyers logo
Best Lawyers Recognized:
20

Rankings

Regional

Milwaukee

Tier
1
Milwaukee
Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
Tier
1
Milwaukee
Commercial Litigation
Tier
1
Milwaukee
Construction Law
Tier
1
Milwaukee
Corporate Law
Tier
1
Milwaukee
Litigation - Bankruptcy
Tier
1
Milwaukee
Litigation - Insurance

About Our Clients

Sample of Clients:

  • Dickten Masch Plastics LLC
  • TEAM Industries Inc.
  • Lakeview Equity Partners
  • Cousins Submarines, Inc.
  • First Manitowoc Bancorp Inc.

    Rankings

    Regional

    Milwaukee

    Tier
    1
    Milwaukee
    Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
    Tier
    1
    Milwaukee
    Commercial Litigation
    Tier
    1
    Milwaukee
    Construction Law
    Tier
    1
    Milwaukee
    Corporate Law
    Tier
    1
    Milwaukee
    Litigation - Bankruptcy
    Tier
    1
    Milwaukee
    Litigation - Insurance
    Tier
    1
    Milwaukee
    Mergers and Acquisitions Law
    Tier
    1
    Milwaukee
    Personal Injury Litigation - Plaintiffs
    Tier
    1
    Milwaukee
    Real Estate Law
    Tier
    1
    Milwaukee
    Trusts and Estates
    Tier
    2
    Milwaukee
    Business Organizations (including LLCs and Partnerships)
    Tier
    2
    Milwaukee
    Litigation - Health Care
    Tier
    2
    Milwaukee
    Litigation - Labor and Employment
    Tier
    2
    Milwaukee
    Litigation - Real Estate
    Tier
    2
    Milwaukee
    Product Liability Litigation - Defendants
    Tier
    3
    Milwaukee
    Employment Law - Management
    Tier
    3
    Milwaukee
    Securities / Capital Markets Law
    Tier
    3
    Milwaukee
    Tax Law

    Practice Areas

    O'Neil, Cannon, Hollman, DeJong & Laing SC has been ranked by Best Law Firms for excellence in 18 specialties, reflecting the firm's commitment to delivering outstanding legal services.
    Additionally, the firm provides services in these practice areas:
    • Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
    • Commercial Litigation
    • Construction Law
    • Corporate Law
    • Elder Law
    • Employment Law - Individuals
    • Employment Law - Management
    • Family Law
    • Litigation - Bankruptcy
    • Mergers and Acquisitions Law
    • Personal Injury Litigation - Plaintiffs
    • Product Liability Litigation - Defendants
    • Real Estate Law
    • Securities / Capital Markets Law
    • Tax Law
    • Trusts and Estates

    Individuals Recognized in The Best Lawyers in America®

    O'Neil, Cannon, Hollman, DeJong & Laing SC proudly has 20 lawyers recognized for their outstanding professional performance in the 2025 edition of The Best Lawyers in America®. This peer-reviewed honor highlights individual excellence and directly qualifies the firm for consideration in the prestigious Best Law Firms rankings. For over four decades, Best Lawyers has been the gold standard for recognizing top legal talent, serving as the cornerstone for Best Law Firms awards. Learn more about our rigorous Best Lawyers research and selection process.
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    Client Comments

    A strong relationship between a client and their law firm is key to achieving the best possible outcomes. Open communication, trust, and collaboration ensure that attorneys understand each client’s unique goals and needs. Choosing the right firm means finding a team with the experience, knowledge, and dedication to guide you through every stage of the legal process.
    Client comments reflect personal opinions and individual experiences. Every case is different, and outcomes depend on specific facts and circumstances. Past results and testimonials do not guarantee similar outcomes in future matters. For personalized legal advice, consult directly with an experienced attorney who can evaluate your specific situation and provide tailored guidance.
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    Offices & Contacts

    Milwaukee, WI
    111 East Wisconsin Avenue, Suite 1400
    Milwaukee, WI 53202
    United States
    Port Washington, WI
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