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Wisner Baum attorneys R. Brent Wisner, Michael L. Baum, Bijan Esfandiari, Timothy A. Loranger, Clay Robbins, and Stephanie B. Sherman have been honored in the Lawdragon 500 Leading Plaintiff Consumer Lawyers. Each attorney has received recognition for their outstanding legal work on complex personal injury cases in Los Angeles, California, and nationwide.


Lawdragon, a renowned media company, is one of the country’s most trusted and popular legal media companies. Lawdragon covers the biggest news in the legal industry and publishes guides to the most elite lawyers in the United States. Lawdragon’s editorial team selected honorees based on submissions, journalistic research, and editorial vetting from a board of fellow lawyers. Those named to the Lawdragon 500 Leading Plaintiff Consumer Lawyers list have a proven track record of success in securing verdicts and settlements on behalf of their clients and maintaining excellent peer review ratings.

In one of its announcements, Lawdragon said this about the attorneys who made the list: “From the opioid epidemic to toxic substances and defective products, truck accidents to wildfires and sexual abuse, these are the lawyers who stand on the front line in individual lawsuits and class actions seeking justice. They relish their role of underdog, taking on the toughest cases and typically only getting paid if they win. Talk about heroes.” 


R. Brent Wisner is Wisner Baum’s managing partner and the firm’s lead trial attorney. Attorney Wisner gained widespread acclaim for his work in the historic Monsanto Roundup litigation, where he served as co-lead trial counsel in two of the first three cases to go before juries. These trials culminated in jury verdicts worth over $2.3 billion and helped pave the way for settlements with Bayer worth roughly $11 billion. Since then, Mr. Wisner has achieved groundbreaking success, most notably in Zantac cancer lawsuits and the Painters Actos RICO class action. He co-leads the consolidated Zantac state court litigation in both California and Delaware, and obtained a confidential settlement for the first Zantac case that was scheduled to proceed to trial in California. In the Actos case, his team obtained class certification, setting a historic precedent in a RICO class action against pharmaceutical companies. Lawdragon 500 has recognized Attorney Wisner since 2019.

Michael L. Baum

Michael Lin Baum is a senior partner at Wisner Baum. He was the firm’s managing partner for 29 years before he handed over the reins to R. Brent Wisner. Under his leadership, the firm achieved billions in verdicts and settlements, including groundbreaking pharmaceutical litigation and the historic Monsanto Roundup cancer verdicts, earning his team international attention and acclaim. Michael focuses on the firm’s Gardasil HPV vaccine litigation against Merck, representing adolescents and young adults who acquired autoimmune diseases after receiving the Gardasil shot. He also represents people who have suffered brain damage after receiving ECT- electroconvulsive therapy. Lawdragon 500 has recognized Attorney since 2019. Read Michael Baum’s Lawdragon Lawyer Limelight article.

Bijan Esfandiari is a pharmaceutical product liability litigation attorney and senior partner at Wisner Baum. He has worked as lead counsel on many of the firm’s cutting-edge major pharmaceutical and medical device cases. His skilled legal advocacy has helped thousands of clients secure full and fair compensation. Attorney Esfandiari’s successes have included many precedent-setting rulings that have helped shape the law for the benefit of those harmed by dangerous drugs and medical devices. He is currently leading the firm’s Gardasil HPV vaccine injury cases and serves as co-lead plaintiffs’ counsel for the Gardasil MDL (multi-district litigation) based in North Carolina. He also leads the ECT-electroconvulsive therapy brain injury cases. Lawdragon 500 has recognized Attorney Esfandiari since 2022.

Timothy A. Loranger is a senior partner at Wisner Baum. He concentrates his practice on product liability, aviation, and commercial ground transportation accidents. As the head of Wisner Baum’s transportation department, Mr. Loranger oversees a team of lawyers handling complex commercial truck, bus, and aviation accident cases. His wealth of experience coupled with a multidisciplinary background in the fields of science and mechanics are vital in identifying and proving causation in accident investigations. Also a veteran of the US Marine Corps, Mr. Loranger is proud to represent military service members and their families in personal injury and wrongful death lawsuits against negligent contractors.  Read Tim Loranger’s Lawdragon Lawyer Limelight article. Lawdragon 500 first recognized Attorney Loranger in 2023.

Clay Robbins III, a third-generation California attorney, is a distinguished partner at Wisner Baum, specializing in transportation accident cases and mass disasters. With over four decades of legal expertise, Clay fights for the rights of victims and their families across the nation in catastrophic personal injury and wrongful death lawsuits. From aviation and truck crashes to maritime incidents, Clay’s unwavering commitment to justice has earned him recognition as a champion in the field, ensuring that those affected receive the representation they deserve.      

Trial lawyer Stephanie B. Sherman joined our firm in 2022 and is one of the firm’s partners. She has over 25 years of experience advocating for thousands of clients in complex legal battles ranging from serious personal injury to product liability cases. Her exceptional skills have garnered her multiple awards and prestigious recognitions, including Forbes Advisor's acknowledgment as one of the 10 Best Wrongful Death Accident Attorneys in Los Angeles, California in 2023. Attorney Sherman has won landmark cases worth hundreds of millions against some of the largest corporations in the world.


Wisner Baum is a nationwide plaintiffs law firm that is known for litigating high-stakes cases against major corporations, particularly in the commercial transportation, pharmaceutical drug, and consumer product industries. Since 1985, the firm has won more than $4 billion in verdicts and settlements for clients across a wide range of practice areas. Many thousands of people have trusted Wisner Baum to represent their interests in complex cases. No matter the corporate defendant, Wisner Baum has the experience and resources needed to prevail.

If you have been injured and need legal assistance, contact our firm online today. Inquiring clients can also dial (855) 948-5098 to connect with our headquarters in Los Angeles. We take cases throughout the nation.


  • $2.0 Billion Verdict Personal Injury

    In May of 2019, the jury in the case of Pilliod et al. v, Monsanto Company ordered the agrochemical giant to pay $2.055 billion in damages to the plaintiffs, Alva and Alberta Pilliod, a Bay Area couple in their 70s.

  • $289.2 Million Verdict Personal Injury

    On Aug. 10, 2018, a San Francisco jury ordered Monsanto to pay $39.25 million in compensatory damages and $250 million in punitive damages to Mr. Johnson, a former groundskeeper who alleged exposure to Monsanto’s herbicides caused him to develop terminal non-Hodgkin lymphoma.

  • $265 Million Settlement Fatal Train Crash

    In 2016, Wisner Baum attorney Timothy A. Loranger and six other attorneys in the Plaintiffs’ Management Committee were able to secure a $265 million settlement for victims of the 2015 Amtrak 188 derailment in Philadelphia, one of the largest in the U.S. for 2016.

  • $105 Million Settlement Pharmaceutical Settlement

    Wisner Baum obtained $105 million on behalf of multiple clients involved in a pharmaceutical negligence case.

  • $80 Million Verdict Personal Injury

    Wisner Baum attorneys served on the trial team in the case of Hardeman v. Monsanto Company, which resulted in an $80 million jury verdict for the plaintiff, Edwin Hardeman.

  • $63 Million Settlement Paxil Pediatric Class Action

    $63 million pediatric class action re false promotion of Paxil. Judge approves final terms of improved national pediatric paxil class action settlement – consumers get a better deal.



We believe our track record speaks for itself. But you don’t have to take our word for it. See what our clients have to say about working with us.

    "I Can’t Imagine a Better Law Firm"

    Multiple lawyers recommended Wisner Baum to me and I have been consistently impressed with the quality of their work.

    - Best Law Firms Survey
    "They Are About Changing the Systems..."

    Wisner Baum are not only amazing attorneys but more importantly, they are activists. They are about changing the systems which got us into trouble in the first place. They understand their role in the process of making change.

    - Kim Witczak
    "Top Legal Minds in the Country"

    The Wisner Baum firm has some of the top legal minds in the country; they are driven, determined, trustworthy, ethical and passionate.

    - From Best Lawyers® Best Law Firms
    "Diligent & Professional Representation"

    Thanks to your efforts I was able to recover from a tragic experience and turn my life around for the best.

    - W.T.
    "Our Best Interest Was Always Number One on Your List"

    A special thank you to your Spanish-speaking staff for the extra effort put into this case. The language barrier was never a problem, and we are so very thankful to them. Your name holds much respect in our family.

    - G.C. & C.C
    "We Have Never Met a More Wonderful Group of People"

    It is obvious that the people at Wisner Baum believe in what they do. And that you all really care about your clients.

    - The B. Family
    "They Worked Very Hard and Kept in Contact, Which Is Very Important to Me"

    I appreciate that you care about how I feel and that you take time to use your talents to ensure your every contact with me is warmly professional.

    - A.D.B.
    "Your Expertise in This Field Gave Me the Utmost Trust and Confidence"

    I wanted a fair settlement within an appropriate time frame, and without any public scrutiny. With your hard work and dedication, we were able to achieve those goals.

    - T.O.

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