Kathleen R. Ellison

Tamara L. McKinzie is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Tamara L., who practices law in Houston, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tamara L. is held by other top lawyers in the same geographic and legal practice area.

Andrew Pratka is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Andrew, who practices law in Houston, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew is held by other top lawyers in the same geographic and legal practice area.

David L. Barron focuses his litigation practice on labor and employment law. David assists his clients with all their labor and employment needs, including representing clients at trials involving wrongful termination, discrimination, harassment, collective action overtime claims and whistle-blower suits before a variety of state and federal courts. He counsels clients on labor negotiations, elections, strikes, and corporate campaigns by unions; litigates disputes before the National Labor Re...

Boris A. Hidalgo is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Boris A., who practices law in Houston, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Boris A. is held by other top lawyers in the same geographic and legal practice area.

Brian E. Simmons focuses on all facets of intellectual property law, including patent and trade secret litigation; patent counseling; due diligence investigations for investments, acquisitions, and divestitures; technology transfers, joint developments, and other research agreements; licenses; transactions involving IP; and risk consulting. Mr. Simmons has represented clients in a variety of matters in the chemical arts after serving as a senior research chemist prior to practicing law. His e...

Patrick Hayes' practice focuses on commercial real estate, and assisting clients in acquiring, disposing, capitalizing and forming companies. Patrick’s real estate practice covers all aspects of commercial real estate, including acquisition, development, capitalizing, financing, leasing and disposition of all product types of commercial real estate. His corporate/commercial practice centers on the formation and restructuring of commercial entities, including corporations, partnerships a...

Andrew Calder is a partner in the Houston and Austin offices of Kirkland & Ellis LLP where he also serves as a member of the Firm’s Executive Committee. His practice focuses on mergers and acquisitions, corporate and securities law, and corporate governance, with a particular focus on the energy sector. Andrew is recognized in Chambers Global, Chambers USA, America's Leading Lawyers for Business for Energy: Oil & Gas (Transactional) 2015–2022, Corporate/M&A 2016–...

Lisa M. Kaufmann is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law, Railroad Law and Transportation Law. Lisa M., who practices law in Houston, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa M. is held by other top lawyers in the same geographic and legal practice area.

Paul Genender is a partner in the Complex Litigation and Arbitration practice, chair of the Texas Commercial Litigation practice, and co-chair of the Houston office at Paul Hastings. Mr. Genender is a seasoned trial lawyer with an established track record of courtroom success representing plaintiffs, defendants, debtors, and creditors. Mr. Genender represents clients in a wide range of business disputes, including antitrust, breach of contract, business fraud, breach of fiduciary duty, unfair...

Biography His broad-based legal experience includes presiding as a municipal court judge of the City of Houston, a state district judge of both a Civil and Family District Courts, and served as assistant attorney general for the State of Texas and briefing clerk for the Honorable Judge Ingraham, Federal District Judge for the Southern District of Texas. He has extensive experience in civil trials and appeals involving complex litigation and family law cases. His mediation experience includes ...