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  • Professionals (569)
  • Capabilities (86)
  • Experience (173)
  • Insights & News (5,486)
  • Other Results (118)

Professionals 569 results

Olga Loy
Olga Loy
Partner
  • Chicago
Email
+1 312-558-6338
vCard

Partner

  • Chicago
James N. Mastracchio
James N. Mastracchio
Partner
  • Washington, DC
Email
+1 202-282-5849
vCard

Partner

  • Washington, DC
Susan Elizabeth Seabrook
Susan Elizabeth Seabrook
Partner
  • Washington, DC
Email
+1 202-282-5220
vCard

Partner

  • Washington, DC
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Capabilities 86 results

Practice Area

Tax

With an international geographic reach, Winston & Strawn’s integrated tax practice addresses virtually all areas of tax law. Our group of 40 tax attorneys is well-versed in representing some of the largest public and privately-held corporations, exempt organizations, and large estates....Read more

Practice Area

Tax Controversy & Criminal Tax

Our Tax Controversy attorneys advise and represent clients in every aspect of federal and state tax investigations, as well as the criminal tax enforcement process. This includes the Internal Revenue Service’s (IRS) multi-jurisdictional examinations and administrative appeals, U.S. Competent Authority representations, post appeals mediation, and trial court and appellate litigation in every federal court hearing a tax matter....Read more

Practice Area

Appellate & Critical Motions

Our nationally recognized Appellate & Critical Motions (ACM) Practice delivers sophisticated legal advocacy and analysis before trial, at trial, and on appeal. From state trial courts to the U.S. Supreme Court, our ACM attorneys identify, preserve, and present the critical legal issues that can make the difference between winning and losing....Read more

Experience 173 results

Experience

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September 10, 2025

$1.05 Billion PECO Energy Company Public Offering of First and Refunding Mortgage Bonds

We served as underwriters' counsel to BNY Capital Markets, Citigroup, PNC Capital Markets LLC, Scotiabank, US Bancorp, Mizuho and MUFG, as joint book-running managers, in connection with the registered public offering of $1.05 billion of First and Refunding Mortgage Bonds by PECO Energy Company comprised of $525 million 4.875% First and Refunding Mortgage Bonds due 2035 and $525 million 5.650% First and Refunding Mortgage Bonds due 2055....Read more

Experience

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September 9, 2025

Greenland Exploration Limited enters business combination with Pelican Acquisition Corporation and March GL Company

Winston & Strawn LLP represented Greenland Exploration Limited in a landmark business combination with Pelican Acquisition Corporation (NASDAQ: PELI) and March GL Company. The transaction, structured as a merger agreement, will result in the formation of Greenland Energy Company, expected to be publicly listed on NASDAQ under the ticker symbol “GLND.” Winston advised Greenland Exploration on all aspects of the deal, including regulatory strategy, corporate structuring, and negotiation of the merger terms....Read more

Experience

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September 8, 2025

Winston Wins Ninth Circuit Reversal and Class Certification in Swimmers’ Antitrust Case, Securing a Global-Impact Settlement with World Aquatics

Winston represents a class of professional swimmers alleging World Aquatics (WA) violated antitrust laws by blocking their participation in the competing  International Swimming League. After WA won summary judgment, Winston successfully appealed, arguing the court applied improper antitrust standards and wrongly denied certification of a damages class. In September 2024, the Ninth Circuit reversed both rulings, reviving all claims and issuing a landmark ruling on the possible application of the per se rule or quick look review to sports-associations rules. Am Law awarded Winston “Litigator of the Week” Runner-Up recognition for the win. In November 2024, the Ninth Circuit denied rehearing. In April 2025, the district court certified a damages class....Read more
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Insights & News 5,486 results

Article

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October 7, 2025

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1 Min Read

The High-Stakes Future of Healthcare Consolidation and Regulation

This article was originally published in Financier Worldwide. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only....Read more

Article

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October 6, 2025

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7 Min Read

The Potential Impact of Mandatory Arbitration Provisions on Securities Claims

This article was originally published in Westlaw Today. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only....Read more

Client Alert

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October 6, 2025

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1 Min Read

California Limits Contractor Retention to Five Percent

Starting in 2026, California will cap retention in private construction contracts at 5%, matching public works standards. The rule excludes non-mixed-use residential projects under four stories and applies across all contractor-subcontractor levels. Lower retention rates for direct contractors will extend to subcontractors. Advocates say that the cap will ease financial strain, especially for smaller firms. Owners may respond with stricter bonding requirements, potentially raising construction costs due to reduced protection against non-performance.

Winston will continue to monitor developments and provide updates as they become available. Please contact your Winston relationship partner should you have any questions or to request further information.

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Other Results 118 results

Site Content

What Is a Tax Authority?

A tax authority is a government body or agency responsible for collecting taxes, administering tax laws, and enforcing tax compliance. In the United States, the Internal Revenue Service (IRS) is the federal tax authority. Most states, territories, and local jurisdictions also have tax authorities to ensure compliance with applicable state and local laws and regulations. These tax authorities are generally responsible for collecting taxes, administering tax laws, and enforcing tax compliance in their respective jurisdictions....Read more

Site Content

What Is Tax Evasion?

Tax evasion is the failure to pay or the deliberate underpayment of federal income taxes. The U.S. income tax system is based on voluntary compliance, and it is the taxpayer’s responsibility to report all income and to pay all taxes due. Tax evasion is a known violation of a legal duty, and may result in monetary penalties, imprisonment, or both....Read more

Site Content

What Is Tax Controversy?

A tax controversy is a dispute between a taxpayer and a tax authority such as the United States Internal Revenue Service (IRS) concerning whether the taxpayer has properly reported and paid their tax liability, and otherwise complied with applicable tax law. A tax controversy may concern a disagreement regarding the correct amount of tax or the manner in which the IRS is attempting to collect tax, as well as whether penalties are appropriate. Tax controversies may be resolved administratively or in litigation....Read more
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