Paul Feinstein
Biography
Paul Feinstein serves as partner in the Mergers and Acquisitions Practice Group at Haynes Boone's Washington, D.C. office. Paul’s practice focuses on antitrust matters relating to mergers and acquisitions, including strategic counseling and compliance, premerger filings under the Hart-Scott-Rodino (HSR) Act and guiding transactions through agency review and investigations. Known for a practical, detail-oriented approach, he works closely with deal teams and in-house counsel to manage antitrust risks while keeping transactions on track.
Prior to joining Haynes Boone, Paul was a partner in the antitrust group of an Am Law 100 firm ranked among the leading competition law practices in the U.S. by the Global Competition Review. In addition to his merger work, Paul regularly defended clients in complex antitrust investigations and litigations brought by the Department of Justice, Federal Trade Commission, state attorneys general and private plaintiffs.
Before embarking on his career as a lawyer, Paul was an elementary school teacher in New York City as a corps member of Teach for America.
-
Mergers and Acquisitions
- Paul regularly advises clients across a broad range of industries on HSR and other antitrust issues relating to mergers and acquisitions. Examples of transactions include:
- Represented a global animal health company in the acquisition of a prescription drug product
- Represented a global supplier of engineered products and technologies in the acquisition of a manufacturing company
- Represented a foreign travel solutions provider in the acquisition of a travel media company
- Represented an insurance brokerage firm in the acquisition of an independent insurance broker
- Represented a global professional services company in the acquisition of a technology consulting business
- Represented a private investment company in the acquisition of a transportation company
- Represented a construction company in the acquisition of a general contractor
- Represented a private investment company in the acquisition of milling facilities
- Represented a global hospitality company in the acquisition of a hotel brand and related assets
- Represented a regional cable services provider in the acquisition of a nearby cable services provider
- Represented a music artist in the acquisition of certain intellectual property and related assets
- Represented a wine company in the acquisition of vineyards and wineries
- Represented a federal credit union in the acquisition of a regional credit union
- Represented a private investment firm in the acquisition of a health care business
- Represented an automotive company in the sale of a franchise portfolio to another automotive company
- Represented an engineering company in its sale to a private equity firm
- Represented an electric supply company in its sale to an electrical distributor
- Represented a cybersecurity company in its sale to a private equity firm
- Represented a data systems company in the sale of its equity to a private equity firm
- Represented a direct marketing company in the sale of certain products to a global home-essentials company
- Served as an antitrust advisor to a special master overseeing a highly complex court-ordered asset divestiture
Antitrust Litigation and Investigations
- Defended a poultry producer in multiple different class actions involving alleged antitrust violations under Section 1 of the Sherman Act
- Defended multiple generic pharmaceutical companies against alleged “reverse payment” patent settlement claims brought by classes of drug purchasers under the Sherman Act
- Represented several different pharmaceutical companies in multiple FTC investigations for alleged antitrust violations involving patent litigation settlements
- Represented a national health insurer in a DOJ investigation
- Represented multiple third-party witnesses in a variety of FTC and DOJ investigations
- Paul regularly advises clients across a broad range of industries on HSR and other antitrust issues relating to mergers and acquisitions. Examples of transactions include:
-
- American Bar Association, Member
- Virginia State Bar, Member
- District of Columbia Bar, Member
-
- Included in "Ones to Watch" category of The Best Lawyers in America, 2023-2025
-
Education
- J.D., University of Virginia School of Law, 2011
- B.A., University of Michigan, 2006
Admissions
- District of Columbia
- Virginia
Back to the Future: The Return of the Old HSR Rules
March 23, 2026