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After acquiring litigation and trial experience working with local and federal prosecutors, Attorney Wiesner moved to focus advancing more tangible goals of real clients.
A proud native of California and Santa Clara County, Attorney Wiesner graduated with honors from Santa Clara University. While studying law, Attorney Wiesner earned awards for outstanding performance in several courses, including Advocacy, and represented Santa Clara University in the Vis International Commercial Arbitration competition. Attorney Wiesner earned the Herman Wildman Social Justice Writing Award for legal analysis of human trafficking laws; a work later relied upon by the New York State Bar Association in their assessment of New York state's human trafficking protections.
From 2011 to 2014, Attorney Wiesner worked along side Superior Court Judges, Federal Prosecutors, and District Attorneys on a range of criminal matters including petty theft, vehicle code violations, rape, possession of child pornography, narcotics possession, homicides, and white collar crimes. These experiences equip Attorney Wiesner with motion and trial experience, familiarity with federal and state white collar crimes, and comfort conducting negotiations where both money and freedom are at stake.
Outside the courtroom, Attorney Wiesner enjoys racquetball, foreign languages, and volunteering in the community.
1
Practice Area
Free Consultation
$0 first 30 minutes
15%-15%
State: California
Acquired: 2013
No misconduct found
Fax
1660 Hamilton Ave, Suite 206, San Jose, CA, 95125
weworkinjury.com/21 Client Reviews
Showing 1 - 4 of 4 reviews | Personal Injury
Posted by Ron | November 25, 2021 | Hired Attorney | Personal Injury
Gets Results!
Where is the "10" star rating? I have worked with attorneys across the globe in my career. Marc comes in number 1 or 2 among them. I have an MBA and have studied professional team building for decades. Bo Katzakian of the eponymous law firm has built an amazing collaborative team where the all the m...
Posted by Carlos | August 26, 2020 | Hired Attorney | Personal Injury
Awesome representation
Marc S. Wiesner did a great job representing me and got me the medical attention I needed when workers comp failed me. I was able to get to see the doctors I needed because of Marc and eventually got a good settlement. If it wasn't for Marc S Wiesner I don't know what would have happened. Thanks Marc...
Posted by Francis | July 03, 2019 | Hired Attorney | Personal Injury
Outstanding ,VeryExcellent Professionalism,
I thank the day i was been referred by my husband co worker to Atty Marc S . Wiesner /Law offices of Atty .Bo Katzakian. From the time my case was taken cared in their office i was able to get proper medical , surgical and physical therapy treatment and workers comp needs.I Highly Recommend Atty Mar...
Posted by Ron | July 22, 2016 | Hired Attorney | Personal Injury
Law Offices of Bo Katzakian
I would like to thank both Bo and Marc for their professionalism and support throughout this process. The insurance company would not co operate at all when seeking proper medical treatment. So glad I found this law firm . Marc Wiesner is a true professional and always has your best interest in mind....
"The answers of Mr. Wiesner on Avvo are consistently accurate, full of analysis, and customized to the needs of the Avvo askers. These are exactly the qualities that every client would want when looking for an attorney."
"Without any reservations whatsoever, I endorse this lawyer. Marc S. Wiesner is committed to his clients, makes informed and appropriate referrals to attorneys for matters outside his practice areas, and knows the ins and outs of the California workers' compensation system, which is an increasingly complex and difficulty system for injured employees and their attorneys. Injured employees would be wise to schedule a consult with him."
"I have followed Mr. Wiesner's career since before he was sworn in as a lawyer. His development as a workers' compensation lawyer has been dramatic. He is well recognized in the legal community as a zealous advocate for his clients. Any injured worker is well served by having Mr. Wiesner as their attorney."
Probate lawyer
Business lawyer
2014 - Present
Attorney, Law Office of Marc S. Wiesner
2014 - Present
Attorney, Law Offices of Bo Katzakian
2014 - Present
California Applicants' Attorneys AssociationMember
2013 - Present
State Bar of CaliforniaAttorney
2013
JD - Juris Doctor
2006
BA - Bachelor of Arts
Mandarin
English
Legal Answers
Legal Guides
Top Contributor
Marc earned significant contribution points in 2025.
Is the attorney responsible for my going back to work?
06 Apr 2026
WC situation and disability issue.
04 Apr 2026
Defense attorney deny cross-examination. No discoveries to submitted at discovery
03 Apr 2026