

MEET OUR TEAM
A TRADITION OF SUCCESS

-
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.
-
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.
-
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.
-
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.
When choosing a lawyer to represent your legal interests, here are some helpful things to consider:
1. Experience – Experience is pivotal when it comes to investigating your claims for damages and proving liability in court. An experienced, trial-ready attorney that can build a case from the ground up and fight for you in court is the best way to give your case an opportunity for justice and maximum compensation.
2. Track Record of Success – Does the attorney have a history of success in your type of case? Does the law firm have a pedigree with significant recoveries against major corporations? A history of substantial settlements and verdicts is a good indicator that the law firm has the ability to win cases when the stakes are high.
3. Fee Structure – These agreements are typically based on a contingency fee, which means that attorneys representing receive a fee if they obtain compensation for you via settlement or verdict. Before you sign an agreement, have the trucking accident attorneys walk you through the fee structure so you know what to expect.
4. Advocacy Beyond the Courtroom – At Wisner Baum, our team of attorneys go the extra mile to ensure that our clients get the help they need, which occasionally extends beyond the purview of the lawsuit. For example, our legal teams often help clients with insurance matters, retrieval of property, closing financial accounts, setting up estates, among other things.
5. Empathy and Clear Communication – Accident victims have been through a lot, and as such, deserve to be treated with care and attention. In your initial meeting with an attorney, pay attention to how they make you feel. Do they answer your questions with respect and care? Remember, this is your case and the attorney should advocate not just professionally to get the results you need; they should advocate with dedication and compassion.

Winning in the courtroom.
Wisner Baum has won over $4 billion in verdicts and settlements for clients like you across all practice areas. Below, we highlight some example verdicts and settlements our truck crash litigation team has achieved.
-
$15 Million Settlement Truck Accident
Our firm successfully negotiated a $15 million catastrophic injury settlement for our clients. The case stemmed from a Southern California accident involving a commercial truck and a pedestrian.
-
$8.5 Million Verdict Commercial Truck Accident
Wisner Baum secured a $8.5 million wrongful death verdict against the food industry company, Tyson Foods, for the wrongful death of a young man.
-
$6.9 Million Settlement Truck Accident Settlement
After a semi-truck drove over a stopped car, killing two of its occupants and injuring a third, one of our attorneys took the case all the way to trial. Our firm continued in pursuit of justice for the three victims over a four-day trial until the case finally settled for $6.9 million.
-
$6 Million Settlement Fatal Truck Accident
Wisner Baum obtained a $6 million wrongful death settlement on behalf of an individual who died following a truck crash.

See what our clients have to say about us.
-
Multiple lawyers recommended Wisner Baum to me and I have been consistently impressed with the quality of their work.
- Best Law Firms Survey -
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 -
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 -
Thanks to your efforts I was able to recover from a tragic experience and turn my life around for the best.
- W.T.
TRYING TO OBTAIN A POLICE REPORT FROM THE INCIDENT? LET US HELP.
Our legal team can contact the police department or the Department of Motor Vehicles (DMV) on your behalf to collect a copy of a crash report. We do this at no cost to you, and you are under no obligation to retain us.