Dempsey Law Firm, LLP - Oshkosh, WI office in Oshkosh, Wisconsin
Dempsey Law Firm, LLP - Oshkosh, WI

Dempsey Law Firm, LLP - Oshkosh, WI

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210 N Main St STE 100, Suite 100, Oshkosh, Wisconsin, United States
177 Years of Practicing, since 1849
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+1 920-235-7300
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Dempsey Law Firm, LLP is one of Wisconsin's oldest continuously operating law practices, serving Oshkosh, the Fox Valley, and communities statewide since 1849. With five regional offices and a legacy spanning more than 175 years, the firm delivers sophisticated legal counsel in business and corporate transactions, commercial real estate, banking, estate planning, probate, municipal governance, and complex civil litigation.

Enduring Legal Excellence in Oshkosh and Across Wisconsin

Selecting the right legal team is a pivotal decision for expanding enterprises, financial institutions, and families planning for future generations. Established in 1849, Dempsey Law Firm, LLP has provided steady counsel to Wisconsin communities for more than 175 years. Operating from its flagship office in downtown Oshkosh with offices in Fond du Lac, De Pere, Waupun, and Wausau, the firm combines the extensive resources of a major practice with personal, responsive service. Whether you need to hire an experienced business litigation lawyer to handle a contractual dispute or seek guidance from a skilled commercial real estate lawyer, their attorneys provide practical, results-driven advocacy tailored to protect your interests.

Comprehensive Banking, Finance, and Corporate Law

Wisconsin business leaders face an evolving regulatory environment and complex economic demands. Dempsey Law Firm, LLP advises commercial lenders, regional banks, and corporate entities on financial compliance, lending packages, business formation, and corporate governance. Their attorneys assist business owners with business succession planning, acquisitions, and buy-sell agreements. By anticipating operational risks and crafting clear transactional documents, the firm ensures companies build and maintain strong legal foundations at every stage of growth.

Commercial Real Estate, Land Use, and Construction Law

Real estate acquisitions and building developments involve substantial financial capital and municipal compliance. The firm represents developers, commercial landlords, property managers, and general contractors throughout the Fox Valley. Key real estate and construction legal services include:

  • Commercial property acquisitions and leasing: Structuring purchase contracts, performing title examinations, and negotiating industrial and retail leases.
  • Zoning and land development: Securing municipal conditional use permits, development agreements, and zoning variances.
  • Construction contracts and disputes: Drafting architectural and building contracts, handling delay claims, and resolving defect litigation.
  • Mechanic liens and payment remedies: Filing lien notices and prosecuting payment recovery claims on behalf of contractors and property owners.

Strategic Estate Planning, Trusts, and Probate Administration

Preserving family wealth requires thoughtful planning and precise execution. The firm assists individuals, business principals, and multi-generational farm families with personalized estate planning solutions. Their attorneys prepare revocable living trusts, last wills, and durable powers of attorney to safeguard assets and prevent family conflicts. Additionally, their probate lawyers guide executors and trustees through estate administration and fiduciary accounting with professionalism.

Trial Advocacy and Commercial Dispute Resolution

When disagreements escalate into formal legal conflicts, dependable courtroom representation is essential. With involvement in thousands of civil disputes across Wisconsin state and federal courts, the litigation team at Dempsey Law Firm, LLP vigorously defends clients in breach of contract suits, partnership breakups, and shareholder disputes. The firm prioritizes pragmatic resolution through mediation when possible, while always preparing cases to prevail before judges and juries.

Why Wisconsin Businesses and Families Choose Dempsey Law Firm, LLP

With attorneys honored by Super Lawyers, Rising Stars, and Martindale-Hubbell AV Preeminent ratings, Dempsey Law Firm, LLP maintains a distinguished reputation built across nearly two centuries. Clients value the firm for its direct communication, deep community ties, and modern billing flexibility through secure online portals. When you need to schedule a consultation with an established lawyer in Oshkosh, Dempsey Law Firm, LLP offers the seasoned perspective your legal matters require.


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Location & Access

Primary Address

Situated in the historic Downtown Oshkosh business district, offering close proximity to regional banks and the US Post Office.

Building Location

This is a modern multi-story professional office building. The building is located directly on N Main Street, right next to the Downtown Oshkosh Post Office and Opera House Square.

Parking Details

For visitors, surface lot parking is available on State Street behind the building, as well as on Pearl Avenue directly in front.

Public Transit

Served by GO Transit Route 2 (Main/Jackson); nearest stop is at Downtown Transit Center.

Accessibility / Suite Access

Enter through the building's main front entrance on N Main Street and walk directly into Suite 100 on the ground level.

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