Atty. Sean Clancy
Sean Clancy is the team leader of Nixon Peabody’s Tax practice, and a member of the firm’s Public Company Transactions team. He assists clients with a broad range of tax and business planning matters and related tax policy matters.
Tax Law Attorney · Serving Washington, DC
Profile Summary
About Sean Clancy at a Glance
Sean Clancy is a tax attorney based in Washington, District of Columbia, practicing at Nixon Peabody LLP. Admitted to practice in District of Columbia, The District of Columbia Bar. Educated at Georgetown University (J.D., 1996). Recognitions include Best Lawyers in America — Tax Law (2026). Serves clients in Washington, DC and the surrounding metropolitan area.
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About Sean Clancy
- Sean Clancy is the team leader of Nixon Peabody’s Tax practice, and a member of the firm’s Public Company Transactions team
- He assists clients with a broad range of tax and business planning matters and related tax policy matters
- My focus Tax Planning I advise clients on federal tax planning, including assistance in structuring mergers and acquisitions and other transactions
- In addition, I counsel private equity funds on domestic and cross-border taxation and corporate finance matters, including mezzanine debt, minority stock and control positions
- I also draft and analyze domestic partnership, joint venture, LLC, disregarded entity and other pass-through arrangements
- Executive Compensation/Employment I assist compensation committees of boards of directors and internal human resources departments with respect to drafting, implementing and administering executive compensation, employment/change of control arrangements and incentive/bonus plans, including state and federal employment tax withholding/reporting obligations and deductibility of compensation, perquisites/fringe benefits and nonqualified deferred compensation
- Corporate Governance/Disclosure I work with both for-profit and nonprofit clients on corporate formation and governance
- In addition, I help analyze and counsel on compliance with the recommended and model pay practices of institutional investors, public interest groups and other stakeholders
- I counsel clients regarding compliance with various regulatory (SEC ’33/’34, Sarbanes-Oxley, Dodd-Frank, TARP, Federal Reserve, etc.) and stock exchange (NYSE/NASDAQ) requirements
- Looking ahead A continued increase in transactions/deal flow, notwithstanding expected legislative change in the federal tax code
- Monitoring of federal tax reform proposals is key to advising clients seeking to structure strategic and capital transactions
Practice Areas Explained
Sean Clancy's Areas of Legal Practice
Each practice area below reflects the types of cases Sean Clancy handles, with a practical overview of what that area of law involves and how it may apply to your situation in Washington.
Tax Law in Washington
Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.
Sean Clancy is one of 84,606 tax attorneys indexed nationally. Browse tax attorneys in District of Columbia →
Jurisdictional Context
Why Local Counsel Matters in Washington
Practicing law in District of Columbia. Legal matters in District of Columbia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Washington are typically filed in the local municipal court or the appropriate District of Columbia state district court, depending on subject matter and amount in controversy. An attorney licensed in District of Columbia 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 District of Columbia courts without local counsel or pro hac vice admission.
Washington Courts and Legal Process
Choosing a Washington-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.
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Professional Profile
Why Clients in Washington Choose Sean Clancy
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 Sean Clancy's practice in the field of tax.
Focused Tax Practice
Concentrating on tax means Sean Clancy's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Washington
A Washington-based practice means Sean Clancy 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 Sean Clancy Handles in Washington
Below is a representative sample of the types of matters Sean Clancy has experience with under District of Columbia law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Sean Clancy directly to discuss the specifics of your situation.
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Sean Clancy's Practice Areas & Specializations
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