Atty. Mark A. Langan

Atty. Mark A. Langan

Mr. Langan is a tax attorney counseling individuals and businesses.

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Tax Law & More Attorney · Serving Burlington, VT

Profile Summary

About Mark A. Langan at a Glance

Mark A. Langan is a trusts and tax attorney based in Burlington, Vermont, practicing at Dinse. Admitted to practice in Vermont, Vermont Bar Association. Educated at St. Mary’s University School of Law (J.D., 1980) and University of California Berkeley (BA, 1975). Recognitions include Best Lawyers in America — Tax Law (2026), Best Lawyers in America — Trusts and Estates (2026), and Best Lawyers in America — Special Focus: (2026). Serves clients in Burlington, VT and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark A. Langan

  • Mr. Langan is a tax attorney counseling individuals and businesses
  • He advises clients on the selection of the proper entity for businesses whether corporations, partnerships, limited liability companies, limited partnership associations, and other newly created entities to hold business
  • A large part of his practice is in estate planning and business succession for closely held companies
  • Mr. Langan's practice involves the restructuring of estates and companies to reduce estate, gift, and income taxes at the federal and state levels and to provide creditor protection for clients in high risk occupations
  • He has been involved with the formation of many family limited liability companies under the laws of favorable states such as New Hampshire and Delaware
  • Mr. Langan's practice involves business succession and estate tax planning with recapitalizations of corporations, key man insurance and split dollar insurance planning, and buy-sell agreements
  • A large portion of his practice involves the formation of credit shelter trusts, QTIP trusts, generation skipping trusts, qualified domestic trusts, qualified personal residence trusts, irrevocable life insurance trusts, charitable remainder trusts, college education trusts, charitable remainder trusts, Medicaid trusts, SSI trusts, creditor protection trusts (including Alaska and Delaware trusts) and trusts to hold family camps and compounds
  • Mr. Langan has also formed many tax-exempt organizations such as private foundations, public charities and business leagues
  • His work includes tax planning for business reorganizations including mergers, consolidations and recapitalizations, and tax planning for partnerships including formation, distributions and dissolutions
  • Mr. Langan also advises individual clients with respect to their income tax issues from planning to representing taxpayers before the Internal Revenue Service in audits, collections and appeals before the Service, U.S
  • Tax Court or United States District Court
  • His practice also involves state tax issues and representing taxpayers before the departments of taxation in Vermont and New Hampshire
  • Mr. Langan clerked at the U.S
  • Department of Justice where he worked on criminal tax cases
  • He previously practiced law with the law firm of Wiggin & Nourie in Manchester, New Hampshire, from 1981-1996, where he became the head of the trust and estate department of the firm in 1986 and a partner of the firm from 1988
  • He served as the chairman of the tax section of the New Hampshire Bar Association in 1992
  • Mr. Langan was successful in having the New Hampshire Supreme Court hold that the real estate transfer tax did not apply in corporate liquidations
  • Appeal of Lorden, 132 N.H. 594, 594 A.2d 1303 (1991)
  • and he organized the amicus curiae group in Polly’s Properties, LLC v
  • Vermont Department of Taxes, Docket No. 2009-124, in which the Supreme Court rejected the Department of Taxes position with respect to the transfer tax exemption associated with the formation of corporations, partnerships and limited liability companies
  • He has represented many estates and individuals through tax audits and, in some cases, appeals through the court system
  • He is licensed to practice before Vermont and New Hampshire courts, the U.S
  • Tax Court and U.S
  • District Courts in Vermont and New Hampshire
  • Mr. Langan was the Chairman of the joint study committee of the Vermont Bar Association and Vermont Banker’s Association that drafted the Uniform Trust Code for Vermont
  • He was also a member of the joint study committee that drafted the Revised Uniform Principal and Income Act for Vermont
  • He testified before the Senate and House Committees for the passage of both Uniform Acts
  • He serves on the Vermont Probate Rules Committee He is a frequent public speaker on tax issues in Vermont and New Hampshire for their bar associations
  • He has been a contributor to the New Hampshire Bar Journal on current tax topics
  • Mr. Langan was an instructor at the University of New Hampshire in the undergraduate school on the law including business law, contracts and tax law and an instructor at Champlain College on trusts and estates and Merrimack Community College on business law

Practice Areas Explained

Mark A. Langan's Areas of Legal Practice

Each practice area below reflects the types of cases Mark A. Langan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Burlington.

Trusts in Burlington

Mark A. Langan is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in Vermont →

Tax Law in Burlington

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Mark A. Langan is one of 84,606 tax attorneys indexed nationally. Browse tax attorneys in Vermont →

Jurisdictional Context

Why Local Counsel Matters in Burlington

Practicing law in Vermont. Legal matters in Vermont are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Burlington are typically filed in the local municipal court or the appropriate Vermont state district court, depending on subject matter and amount in controversy. An attorney licensed in Vermont brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Vermont courts without local counsel or pro hac vice admission.

Burlington Courts and Legal Process

Choosing a Burlington-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Vermont attorneys? Browse all attorneys in Burlington or all attorneys in Vermont.

Frequently Asked

Common Questions About Mark A. Langan

Where is Mark A. Langan's law office located?
Mark A. Langan's law practice is located in Burlington, Vermont. The firm is Dinse. You can contact the office directly through this profile page.
What practice areas does Mark A. Langan handle?
Mark A. Langan focuses on trusts, tax. Each practice area listed reflects experience handling cases of that type in Vermont.
Where did Mark A. Langan go to law school?
Mark A. Langan earned their education at (J.D., 1980); (BA, 1975).
How can I contact Mark A. Langan for a consultation?
You can contact Mark A. Langan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark A. Langan received?
Mark A. Langan's notable recognition includes: Best Lawyers in America — Tax Law; Best Lawyers in America — Trusts and Estates; Best Lawyers in America — Special Focus:; Best Lawyers in America — Estate Planning; Best Lawyers in America — Gift Planning.

Professional Profile

Why Clients in Burlington Choose Mark A. Langan

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark A. Langan's practice in the field of trusts and tax.

Broad Practice Area Coverage

Covering trusts and tax, Mark A. Langan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Burlington

A Burlington-based practice means Mark A. Langan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Mark A. Langan Handles in Burlington

Below is a representative sample of the types of matters Mark A. Langan has experience with under Vermont law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

IRS audit representation
Tax
Tax lien and levy defense
Tax
Offer in compromise
Tax
Business tax planning
Tax

This list is illustrative, not exhaustive. Contact Mark A. Langan directly to discuss the specifics of your situation.

Search Reference

How People Find Mark A. Langan Online

Prospective clients searching for legal help in Burlington commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark A. Langan.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark A. Langan directly.

Mark A. Langan's Practice Areas & Specializations

Education & Law School Background

J.D.
St. Mary’s University School of Law
- 1980
BA
University of California Berkeley
- 1975

Awards & Professional Honors

Best Lawyers in America — Tax Law
- 2026
Best Lawyers in America — Trusts and Estates
- 2026
Best Lawyers in America — Special Focus:
- 2026
Best Lawyers in America — Estate Planning
- 2026
Best Lawyers in America — Gift Planning
- 2026
Best Lawyers in America — Nonprofit Organizations and Charitable Giving
- 2026
Best Lawyers in America — Planning for Closely Held Businesses
- 2026
Best Lawyers in America — Probate
- 2026
Best Lawyers in America — Succession Planning
- 2026
Best Lawyers in America — Tax
- 2026
Best Lawyers in America — Trust Administration
- 2026
Lawyer of the Year — Tax Law (Burlington)
- 2025
Lawyer of the Year — Trusts and Estates (Burlington)
- 2024
Lawyer of the Year — Tax Law (Burlington)
- 2022
Lawyer of the Year — Trusts and Estates (Burlington)
- 2021
Lawyer of the Year — Tax Law (Burlington)
- 2020
Lawyer of the Year — Trusts and Estates (Burlington)
- 2018
Lawyer of the Year — Tax Law (Burlington)
- 2017
Lawyer of the Year — Tax Law (Burlington)
- 2015
Lawyer of the Year — Trusts and Estates (Burlington)
- 2014

Bar Admissions & Licensed Jurisdictions

Vermont, Vermont Bar Association

Client Reviews & Ratings — Mark A. Langan

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