Paul J. Van Osselaer

Amy Warr came to Alexander Dubose & Jefferson after serving five years as an Assistant Solicitor General for the State of Texas. While at the Solicitor General's office, Amy handled many prominent appeals, including the challenge to the Ten Commandments monument on the Texas Capitol grounds in the United States Supreme Court and the 2005 School Finance case in the Supreme Court of Texas. At ADJT, Amy continues a high-level Texas and federal appellate practice. In 2008 she successfully rep...

Shelly Masters is an experienced trial attorney representing clients in multiple areas of litigation, with a particular focus on construction, commercial, employment and product liability matters. After practicing more than twenty years, she has amassed a successful track record of prosecuting and defending complex multiparty cases before state and federal courts in multiple states involving a wide range of legal issues. Shelly is acutely aware of the issues facing those involved in the const...

Mark L. Hawkins is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation and Real Estate Law. Mark L. practices law in Austin, Texas Best Lawyers has recognized Mark L. Hawkins since 2012. 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 Mark L. Hawkins is held by other lawyers.

Drew’s practice involves the representation of investors and private companies in connection with a broad range of corporate and business transactions, including venture capital and private equity financings, strategic acquisitions and accompanying investments, mergers and acquisitions / dispositions and general business / contract matters. Drew’s transactional experience spans a broad range of industries, including energy and oilfield services, technology, healthcare / biotechnol...

Mark C. Davis is a lawyer recognized by Best Lawyers in the practice area of Energy Law. Mark C. practices law in Austin, Texas Best Lawyers has recognized Mark C. Davis since 2020. 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 Mark C. Davis is held by other lawyers.

Mr. Jones specializes in wills, estates and trust, and is Board Certified in Estate Planning and Probate by the Texas Board of Legal Specialization. His practice is concentrated in litigation and controversies arising from wills, trusts, guardianships and powers of attorney. Mr. Jones has been named a Super Lawyer, sponsored by Thomson Reuters as printed by Texas Monthly magazine from 2003-2015, and has been named in The Best Lawyers in America. He is a fellow of the American College of Trust...

Brenda L. Clayton is a partner at Kelly Hart whose practice sits at the intersection of environmental, energy, and appellate law. Based in Austin, she guides clients through complex state and federal regulatory frameworks governing waste, water, and natural resources. Brenda’s environmental practice spans high-stakes litigation—including CERCLA actions and federal citizen suits—as well as compliance counseling under major statutory frameworks like RCRA and the Clean Water Ac...

Civil procedure expert Alexandra Wilson Albright joined the firm full-time as a partner in 2017, after many years of dual service to The University of Texas School of Law and to the firm as of-counsel. Professor Albright’s career as a member of the faculty focused on federal and Texas civil procedure, and her service included many years’ as the school’s Associate Dean. Professor Albright is highly regarded as an expert in the rules of trial and appellate procedure and is Boa...

Mike Slack focuses on the most challenging and demanding areas of civil litigation, including aviation law and product liability cases against major corporations. A licensed pilot and former NASA aerospace engineer, Mike combines his technical knowledge and skills with his extensive litigation and trial experience for the benefit of his clients. Mike's legal experience includes more than 36 years and litigating hundreds of lawsuits arising from catastrophic injuries and deaths due to unsafe p...

Trent Krienke is a lawyer recognized by Best Lawyers in the practice area of Health Care Law. Trent practices law in Austin, Texas Best Lawyers has recognized Trent Krienke 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 Trent Krienke is held by other lawyers.