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  • Professionals (169)
  • Capabilities (69)
  • Experience (21)
  • Insights & News (793)
  • Other Results (37)

Professionals 169 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
View All Professionals

Capabilities 69 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

Industry

Energy Transition

As core segments of the global economy continue to embrace sustainable and carbon-neutral energy resources as complementary and integral to fossil-based systems of energy production and consumption, we stand ready to guide our clients through the energy transition. Our team is at the forefront of the flourishing energy transition market, and we bring practical experience, perspective, and innovative thinking to the sector. By combining our more than 40 years of experience in renewable and conventional energy with an integrated service approach, we help clients to plan for, invest in, and thrive in today’s shifting environment. Not only does our team include experienced energy and corporate lawyers, but also practitioners with deep experience in tax credits and tax equity, project finance, infrastructure, and power and renewables to serve the varied needs of our client base....Read more

Experience 21 results

Experience

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January 6, 2026

Brightwood Capital’s Acquisition of Museum of Illusions Group

A team led by Bradley Vaiana and Austin Leach represented Brightwood Capital Advisors, LLC (“Brightwood”), a New York–based investment firm, in its acquisition of Museum of Illusions Group, the world’s largest privately held chain of museums, from Invera Capital Partners. As part of the transaction, five previously franchised locations will transition from the chain’s largest franchisee, LOL Entertainment, to become corporate-owned sites. Winston attorneys across multiple practice areas and offices, including M&A, Tax, Intellectual Property, Employee Benefits, and the firm’s UK office, assisted in structuring a complex cross-border transaction to support Brightwood's fund investment goals. The acquisitions were completed on January 6, 2026....Read more

Experience

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November 7, 2025

Precision Aviation Group - Acquisition of Helicopter Engine Repair Overhaul Services

A team led by Austin Leach and Justin Levy represented Precision Aviation Group (PAG) in its acquisition of H.E.R.O.S., a premier Rolls-Royce M250/RR300 engine MRO provider, and its affiliate, Hye-Tech Manufacturing. ...Read more

Experience

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February 10, 2025

US$600 million Total Play Telecomunicaciones S.A.P.I. de C.V. Offer to Exchange Senior Notes

Winston & Strawn represented Total Play Telecomunicaciones, S.A.P.I. de C.V. (“Total Play”), a leading telecommunications company in Mexico, in connection with the offer to exchange (a) up to US$600M of its outstanding 6.375% Senior Notes due 2028 (the “Existing Notes”) for newly issued 11.125% Senior Secured Notes due 2032 (the “New Notes”) and (b) a cash payment by each tendering holder of U.S.$450 for each U.S.$1,000 in Existing Notes tendered by such holder (the “New Money Deposits”) for newly issued New Notes. Total Play also solicited holders for their consent to certain proposed amendments to the Existing Notes. The issuance of the New Notes was issued pursuant to Rule 144A under the Securities Act and outside the United States pursuant to Regulation S under the Securities Act....Read more
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Insights & News 793 results

Winston’s Environmental Law Update

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January 29, 2026

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4 Min Read

CARB Advances Climate Disclosure Rules as Ninth Circuit Appeal Continues

As we previously noted, a legal challenge to California’s climate disclosure laws has made its way to the Ninth Circuit Court of Appeals, which stayed enforcement of one of the laws pending appeal.
 

Tax Impacts

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January 21, 2026

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4 Min Read

5th Circuit Gives Taxpayers Sirius Victory in Self-Employment Tax Case

On Friday, January 16, 2026, the U.S. Court of Appeals for the Fifth Circuit ruled in a 2-1 decision in Sirius Solutions, L.L.L.P. v. Commissioner that state-law limited partners in a partnership may qualify for an exemption from federal self-employment taxes on their distributive share of partnership income, regardless of whether that partner is a passive investor in the partnership or not.

Seminar/CLE

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January 20, 2026

2026 NYC SBIC Fund Conference

Winston & Strawn and RSM US LLP are co-hosting the annual NYC SBIC Fund Conference on Tuesday, January 20, 2026.General and limited partners, chief financial officers, and controllers of small business investment company (SBIC) funds are invited to a half-day seminar covering various topics related to SBIC fund operations, including:...Read more
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Other Results 37 results

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 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 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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