Catherine M. Karatzas

Nicole DeWitt is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice and Health Care Law. Nicole, who practices law in Pine Brook, New Jersey, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nicole is held by other top lawyers in the same geographic and legal practice area.

Mary Kay Shaver is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Public Finance Law. Mary Kay, who practices law in Grand Rapids, Michigan, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary Kay is held by other top lawyers in the same geographic and legal practice area.

Adrienne L. Baker is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Real Estate. Adrienne L., who practices law in Rogers, Arkansas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Adrienne L. is held by other top lawyers in the same geographic and legal practice area.

Michael A. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Michael A., who practices law in New York, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael A. is held by other top lawyers in the same geographic and legal practice area.

John Partigan is known for his extensive experience in public and private company mergers and acquisitions, joint ventures and strategic alliances, capital markets transactions, and corporate governance. He is the team leader of the firm’s national Securities practice. My focus My focus is on helping our clients achieve their goals, by efficiently and effectively structuring and executing on transformative transactions, including acquisitions, dispositions, debt or equity financings, in...

Areas of Practice: Business Law & Taxation , Mergers & Acquisitions , Wills, Trusts, Estate Planning & Estate Administration Mr. Diab has substantial experience as lead counsel in structuring, negotiating and closing of mergers and acquisitions, representing both buyers and sellers in taxable and tax-free acquisitions, divestitures, strategic alliances, and investments by venture capital and private equity firms since 1990. He has represented closely-held business owners in busine...

Mark A. Van Allsburg, a native of Grand Rapids, received his bachelor’s degree from Calvin College in 1981, and he received his law degree from the University of Michigan in 1983. Mark is a member of the Grand Rapids Bar Association and the State Bar of Michigan (former Chairman of the State Oil and Gas Law Committee), the Michigan Oil and Gas Association and the Michigan and American Associations of Professional Landmen. Mark is a past chairman of the firm’s Management Committee....

Tesha Peeples is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Tesha, who practices law in Houston, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tesha is held by other top lawyers in the same geographic and legal practice area.

Meghan R. Biss is a top attorney recognized by Best Lawyers in the practice area(s) of Nonprofit / Charities Law. Meghan R., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Meghan R. is held by other top lawyers in the same geographic and legal practice area.

Practicing law since 1974, Taylor Porter Of Counsel Jim Ellis has focused on representing utility, energy, and other regulated companies on state and federal regulatory, corporate, merger and acquisitions, transactional, contract, and litigation matters. Upon graduating from Tulane Law School, he worked in Washington, D.C., for the Federal Energy Regulatory Commission and the General Services Administration. He represented the executive agencies of the federal government and the Department of...