Jason Leland Chrestionson

Patrick D. Owens is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Patrick D., who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick D. is held by other top lawyers in the same geographic and legal practice area.

David Morris is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. David, who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Rachel B. Cowen focuses her practice in various employment discrimination and wrongful termination cases in federal and state courts. Rachel’s experience includes prosecuting and defending employee mobility and trade secret litigation on an emergency injunctive basis. She also counsels employers facing union organizing activity and picketing, and has successfully tried numerous cases before the National Labor Relations Board. She also handles collective bargaining and labor arbitrations...

Dan has over 35 years of experience navigating a broad range of highly complex and sophisticated transactions in the real estate space. He has been ranked in Chambers USA, America’s Leading Lawyers for Business since 2005. In the 2021 edition, sources noted that “his work product is phenomenal” and “he has a great reputation.” In the 2018 edition, clients praised Dan for his “high degree of technical knowledge, accuracy and client service.” Dan has ex...

A firm founder, visionary leader, and skilled litigator, Paul Slater handles high-stakes antitrust cases for private and public enterprises, including Fortune 500 companies. He pioneered the opt-out practice, representing companies as individual plaintiffs in industry-wide multidistrict antitrust litigation. This practice enables clients to tailor their claims and maximize their recoveries outside of class action proceedings, which often fail to meet individual client needs. Mr. Slater repres...

Chair of the firm’s Associations and Foundations group, Paula Goedert represents nonprofit organizations, including professional societies, trade associations, public charities and private foundations. Paula offers a depth of experience in guiding nonprofits through the challenges they face, and appreciates the opportunity to help make a difference. Paula serves as general or lead counsel for many national associations that represent prominent economy-drivers, industries and professiona...

Melissa A. Siebert is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Melissa A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa A. is held by other top lawyers in the same geographic and legal practice area.

Bill is chair of the firm’s Labor & Employment practice group. He is a litigator who manages employment-related disputes before federal and state courts and administrative agencies throughout the country, and he also serves as a strategic partner to companies and executives concerning the broad spectrum of critical business and employment matters that impact their operations. Bill’s litigation practice encompasses the full spectrum of employment matters. He litigates and advis...

Robert Unikel is a partner in the Chicago office of Paul Hastings and is head of the Chicago and Midwest Intellectual Property practice. Mr. Unikel has a diverse practice that includes litigating patent, trade secret, and trademark cases in a variety of industries, including digital media distribution, consumer products and brands, financial products and services, auto parts, and medical devices. Mr. Unikel's extensive experience includes trying patent and trade secret cases involving varied ...

When corporate management and benefit plan fiduciaries need a highly experienced counselor to represent their interests in employment and compensation, tax, litigation, corporate planning, fiduciary responsibilities, or plan administration matters, they turn to attorney Lee Polk. Lee is adept at representing clients in business transactions and dealings with government agencies, such as the U.S. Department of Labor, the Internal Revenue Service, and the Pension Benefit Guaranty Corporation. C...