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Newsletter Client Focused. Trial Ready. Billions Won.



At Wisner Baum, we are committed to keeping our clients and colleagues informed about our ongoing work across numerous areas of practice. Our newsletter is a valuable resource that provides litigation updates, case results, major media appearances, new members of our team, and much more. 

We also include information on how other law firms can partner with us in cases we are leading. As of 2023, we are accepting case referrals for the areas of practice listed below. With over $4 billion in verdicts and settlements, our firm has the resources and experience needed to get the job done and secure your referral fee.

Current Case Referrals:


Our law firm publishes two newsletters per year. If you are interested in staying up to date with relevant legal developments in our major practice areas, our newsletters are a convenient way to stay informed and in touch.

Below you will find links to PDF copies of our newsletters. Simply click on the links to open and read the newsletters. 


While our main offices are located in Los Angeles and the San Francisco Bay Area, our lawyers handle cases throughout California and across the United States. Since 1985, our firm has litigated personal injury and wrongful death lawsuits on behalf of clients in all 50 states. 


West Coast

East Coast

If you have any questions or would like to discuss any of the topics covered in our newsletters, please do not hesitate to contact our office. Thank you for your continued support and interest in our firm. We look forward to working with you and keeping you informed through our newsletters.             


  • R. Brent  Wisner Photo
    R. Brent Wisner Attorney, Managing Partner

    R. Brent Wisner is the managing partner of Wisner Baum and is based at our San Francisco Bay Area office. Brent is driven by a deep-rooted passion for using the law to help those who have been marginalized and hurt by large, and sometimes malicious, corporations.

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  • Michael L. Baum Photo
    Michael Baum Attorney, Senior Partner

    Michael L. Baum is a senior partner of Wisner Baum (formerly Baum Hedlund Aristei & Goldman) with nearly 40 years of experience. He was the managing partner of Baum Hedlund from 1993 to 2022 and proudly turned over the reins to R. Brent Wisner in January of 2023.

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  • Bijan  Esfandiari Photo
    Bijan Esfandiari Attorney, Senior Partner

    Bijan Esfandiari is a pharmaceutical product liability litigation attorney and senior partner at Wisner Baum in Los Angeles. Since joining the firm in 2007, Bijan has worked as lead counsel on several cutting-edge pharmaceutical and medical device cases.

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  • Timothy A. Loranger Photo
    Timothy Loranger Attorney, Senior Partner, Pilot, Marine Corps Veteran

    Timothy A. Loranger is an attorney and senior partner at the national mass disaster law firm of Wisner Baum. A consumer attorney, pilot, and avid citizen advocate.

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  • Monique  Alarcon Photo
    Monique Alarcon Attorney, Senior Associate

    Monique Alarcon is an attorney in the Los Angeles office of Wisner Baum where she focuses her practice on the firm’s medical device cases, pharmaceutical drug liability and consumer fraud litigation.

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  • W. Crawford  Appleby IV Photo
    W. Crawford Appleby IV Attorney, Senior Associate

    William Crawford Appleby IV is an attorney in the Los Angeles office of Wisner Baum. He focuses on complex law and motion matters, in-depth legal research and writing, and case strategy.

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  • Pedram  Esfandiary Photo
    Pedram Esfandiary Attorney, Partner

    Pedram Esfandiary is a partner and trial attorney based in the Los Angeles office of Wisner Baum, where he concentrates his practice on toxic tort injuries, pharmaceutical drug liability, class actions, consumer fraud litigation and police misconduct lawsuits.

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  • Adam M. Foster Photo
    Adam Foster Associate, Attorney

    Adam M. Foster is an attorney in the Los Angeles office of Wisner Baum. Adam concentrates his practice on class actions and mass torts particularly those related to pharmaceuticals, consumer products, and products liability, generally.

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  • Matthew P. French Photo
    Matthew French Associate, Attorney

    Matthew P. French is an attorney at Wisner Baum’s Los Angeles office, where he focuses his practice on the firm’s commercial transportation accident cases. Led by a strong desire to help people when they need it most, Matthew’s clients appreciate his empathetic approach to how he handles his cases.

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  • Ari S. Friedman Photo
    Ari Friedman Attorney, Partner

    Ari Friedman is a partner and trial attorney at Wisner Baum where he focuses his practice on complex and multi-district litigation, product liability, and personal injury and wrongful death cases stemming from transportation accidents (including aviation accidents and truck crashes) and other catastrophic injury (including TBI).

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  • Harrison E. James Photo
    Harrison James Associate, Attorney

    Harrison E. James is an attorney in the Los Angeles office of Wisner Baum, where he focuses his practice on the firm’s pharmaceutical drug liability, class action, and consumer fraud litigation.

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  • Mayra  Maturana Photo
    Mayra Maturana Associate, Attorney

    Mayra Maturana is an attorney in the Los Angeles office of Wisner Baum where she concentrates her practice on toxic tort injuries. She is part of firm’s legal team handling the toxic baby food litigation.

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  • Clay  Robbins III Photo
    Clay Robbins III Attorney, Partner

    Clay Robbins III is an attorney and partner in the Los Angeles office of Wisner Baum. A third-generation California lawyer, Clay concentrates his practice on commercial transportation accident litigation and mass disasters.

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  • Stephanie B. Sherman Photo
    Stephanie Sherman Attorney, Partner

    Stephanie B. Sherman is a multiple award-winning trial lawyer and partner at Wisner Baum. With over 20 years of experience, she has helped thousands of clients in serious personal injury, wrongful death, product liability, chemical exposure, and dangerous pharmaceutical cases.

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  • Helen E. Tokar Photo
    Helen Tokar Attorney, Senior Associate

    Helen E. Tokar is an attorney in the Los Angeles office of Wisner Baum where she focuses her practice on the firm’s Zantac cancer litigation.

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  • Cara J. Luther Photo
    Cara Luther Attorney of Counsel

    Cara J. Luther is of counsel to Wisner Baum, focusing on the firm’s mass disaster cases and commercial transportation accident cases. She worked for 31 years as a full-time attorney at the firm until 2022.

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  • Frances M. Phares Photo
    Frances Phares Attorney of Counsel

    Frances M. Phares is of counsel to Wisner Baum, where she focuses her practice on personal injury and wrongful death litigation stemming from major transportation disasters, pharmaceutical product liability cases and toxic exposure across the nation.

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  • Mark H. Schlein Photo
    Mark Schlein Attorney of Counsel

    Mark H. Schlein transitioned to ”of counsel” status to Wisner Baum in 2022 and continues to focus on the firm’s whistleblower qui tam cases. For 11 years he worked full time as the firm’s top whistleblower attorney, handling dozens of whistleblower cases.

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  • Ronald L. M. Goldman Photo
    Ronald L. Goldman Pilot, Attorney of Counsel, Retired

    Ronald L. M. Goldman retired after 60 years in the practice of law on January 10, 2023. He held the positions of vice president and senior trial attorney at Baum Hedlund & Aristei & Goldman (now Wisner Baum) and was a pillar of Baum Hedlund for 19 years.

    Read Bio
  • Paul J. Hedlund Photo
    Paul Hedlund Senior Shareholder, Mechanical Engineer, Retired

    Paul J. Hedlund was an attorney for 45 years and a member of our team at Baum Hedlund Aristei & Goldman for 30 of those years. He served as one of the firm’s senior shareholders for more than 20 years, overseeing the firm’s major transportation accident cases.

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  • J. Clark  Aristei Photo
    J. Clark Aristei Senior Shareholder, Deceased

    J. Clark Aristei was an attorney for nearly 40 years and a member of our team at Wisner Baum for 26 of those years. Clark served as a senior shareholder for more than two decades and then semi-retired while also acting as Of Counsel to our firm.

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Locally & Nationally Recognized

  • Best Law Firms 2023
  • The Truck Safety Coalition
  • California Powerhouse
  • Elite Trial Lawyers
  • Listed in Best Lawyers
  • AV Top Ranked Law Firm
  • Verdicts Hall of Fame
  • Super Lawyers

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Client Focused. Trial Ready. Billions Won.
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  • Proven Track Record

    Wisner Baum has recovered over $4 billion for our clients. We know what it takes to win big cases against big companies.

  • Award-Winning Law Firm

    Recognized as one of U.S. News – Best Lawyers® “Best Law Firms,” we have won the National Trial Lawyers’ Mass Tort Trial Team of the Year award multiple times.

  • No Fees Unless We Win

    Our trucking accident lawyers offer free case consultations and operate on contingency, meaning there are no fees unless we win.


    We are a California law firm with offices in Los Angeles, San Diego, Sacramento, Ontario, Bakersfield, and the San Francisco Bay Area.