Derek S. Hollingsworth

Adam H. Laughton guides health care providers and other parties through the complexities of health care transactions, including inevitable regulatory questions, licensing, payor enrollment and many other issues. Adam has handled transactions involving a wide variety of providers and facilities, including hospitals, ambulatory surgery centers, behavioral health providers and freestanding emergency rooms, as well as physician practices and other entrepreneurs in the health care space. These tra...

Benjamin Wallen is a lawyer recognized by Best Lawyers in the practice area of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Benjamin practices law in Houston, Texas Best Lawyers has recognized Benjamin Wallen since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Benjamin Wallen is held by other lawyers.

Leigh N. Ganchan is a lawyer recognized by Best Lawyers in the practice area of Immigration Law. Leigh N. practices law in Houston, Texas Best Lawyers has recognized Leigh N. Ganchan since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Leigh N. Ganchan is held by other lawyers.

Wills Collier is a Partner at Houston's Heim, Payne & Choursh, focusing on patent infringement litigation covering a wide range of technologies, including computer and electrical engineering, oil and gas technologies, and mechanical systems. With experience in all phases of district court litigation, Mr. Collier provides a technical and engineering background that helps him effectively communicate key issues to judges and juries. Mr. Collier began his career practicing patent litigation a...

The biggest victory is quietly stopping a case, and David has helped clients avoid charges in many DOJ,SEC, and other government investigations. But David is equally known for courtroom and appellate victories – including antitrust, environmental, health care, securities, immigration, commodities, banking, bribery, government contracts, and others. He also has been recruited to try civil cases, sometimes shortly before trial. Cases include: Acquittal of the Boeing pilot charged in the 7...

Jonathan P. Osha brings more than 30 years of intellectual property experience to Osha Bergman Watanabe & Burton LLP , where he advises clients on patent strategy , international intellectual property matters, and complex IP portfolio management. Based in Houston, Texas, his practice includes Litigation - Patent and Patent Law, with a focus on electronics, optics, physics, and emerging technologies. He also mentors attorneys and patent agents within the firm and leads the firm’s ele...

Joshua Mermis’ focus is on litigation relating to construction, energy, product liability and business law. He has extensive experience conducting both jury and bench trials, as well as arbitrations. His litigation experience is broad, ranging from homeowner claims to multimillion dollar commercial projects throughout Texas. Joshua represents domestic and international companies including developers, general contractors, subcontractors, product and equipment manufacturers, as well as in...

M. Michelle Carreras is a key member of the Issues and Appeals section of The Lanier Law Firm, handling complex appeals, briefings and research for trial. She has worked on a wide variety of cases, including mass tort, products liability, personal injury, business litigation and sports law litigation. She was a key member of the firm’s Pinnacle bellwether trial team that won a $1 billion combined jury verdict and a $502 million jury verdict in 2016. Those victories were recently ranked ...

Allan Kirk is a lawyer recognized by Best Lawyers in the practice area of Leveraged Buyouts and Private Equity Law. Allan practices law in Houston, Texas Best Lawyers has recognized Allan Kirk since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Allan Kirk is held by other lawyers.

John Zavitsanos is a highly regarded trial lawyer who loves trying cases and loves winning. He has achieved success for a multitude of clients – both defendants and plaintiffs, from big energy companies to lone whistleblowers battling the odds. He has tried almost 100 cases to verdict in litigation that runs the gamut: financial services, oil and gas, construction, complex commercial disputes, director and officer liability, non-compete and trade-secret disputes, real estate development...