Ann Walsh

James J. Mazza, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. James J., who practices law in Chicago, Illinois, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James J. is held by other top lawyers in the same geographic and legal practice area.

William E. Ridgway is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Regulatory Enforcement (SEC, Telecom, Energy). William E., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William E. is held by other top lawyers in the same geographic and legal practice area.

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...

Walt Holzer focuses on complex business transactions, including mergers, acquisitions, buyouts, recapitalizations, divestitures, venture capital and growth equity investing, and executive compensation. He has handled numerous transactions in a wide variety of industries for private equity, family office and strategic clients. Praised by clients for his "pragmatic approach, business acumen and sector knowledge" and his "expertise…and commerciality" and "valuable understanding of the mos...

Richard A. Sirus is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Richard A., 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 Richard A. is held by other top lawyers in the same geographic and legal practice area.

Susan is highly regarded nationally in the area of health care reform and health and welfare benefits. She assists employers and health plans with their health care reform strategy and compliance with laws affecting group health plans, such as the Affordable Care Act (ACA), Health Insurance Portability and Accountability Act (HIPAA), Employee Retirement Income Security Act, the CARES Act, the Mental Health Parity and Addiction Equity Act, and the Internal Revenue Code. Susan also has extensiv...

Seth Horvath focuses his practice on trial and appellate litigation in state and federal courts nationwide. He represents a wide variety of clients in complex commercial disputes across multiple industries. My focus My practice includes three main areas: Commercial Litigation My commercial litigation experience is wide-ranging. From single-witness administrative hearings to complex, multiparty trials to summary proceedings on issues of law, I represent clients in the real-estate, financial-se...

A skilled negotiator and litigator, partner Michael F. Koenigsberger focuses his practice on family law- related matters. Recognized as one of Chicago’s leading lawyers in family law, he has represented hundreds of clients in complex custody and financial issues, prenuptial agreements, paternity cases and domestic relations. Particularly adept at dealing with high-asset, complex cases, Michael takes pride in working with clients through all phases of the issues they face, from litigatin...

Larry is chair of the firm’s Private Wealth Services practice group. He facilitates successful legal strategies for entrepreneurs, tax-exempt organizations, fiduciaries and high-net worth families and individuals. This work involves estate, gift and charitable planning issues, including business succession, tax-efficient ownership structures, sophisticated tax-exempt structures, trust and estate administration, executive benefits, life insurance and international estate planning for wea...

Matthew Steinmetz focuses primarily on leveraged buyouts of public and private companies, as well as recaps and joint ventures. His experience spans a wide variety of sectors, including technology, media, healthcare, industrials and retail. His principal clients include both large cap and middle cap leveraged buyout funds, located in the U.S. and abroad. In addition to his considerable transactional work, he is a trusted advisor to a number of senior PE fund managers.