Bryan Westhoff is a business-minded litigator with substantial experience handling complex domestic and international commercial litigation, arbitrations and government investigations. He has successfully represented clients in matters of all sizes, including multiple “bet-the-company” cases involving more than $1 billion in potential exposure.

Bryan’s practice focuses on pre- and post-closing M&A disputes, securities litigation and investigations, and other financial litigation. He regularly represents public companies and boards of directors in shareholder litigation, including proxy, disclosure and transaction-process claims, and advises private equity firms in deal-related disputes such as post-closing indemnification and fraud claims, working capital disputes and earn-out litigation. Bryan also represents individuals and companies in investigations conducted by the U.S. Securities and Exchange Commission (SEC) involving securities offerings, disclosures and accounting or audit issues.

In addition, Bryan defends clients against federal and state consumer protection, false advertising and deceptive trade practices claims. His experience includes defending matters brought by the Federal Trade Commission (FTC), investigations by state attorneys general, consumer class actions and claims under the Lanham Act.

Bryan regularly represents clients in expedited litigation, including offensive and defensive proceedings, and has successfully argued numerous motions for temporary restraining orders and preliminary injunctions. He serves as Chair of Polsinelli’s M&A Litigation group.