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Michael Hassen

Class action Attorney at Walnut Creek, CA

5.0   3 reviews

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About Michael

Learn Michael’s areas of practice.

Practice areas

Michael Hassen's litigation practice spans 32 years and emphasizes general business and commercial litigation, including class action defense and matters involving intellectual property and unfair competition. His Class Action Defense Blog contains more than 2,000 searchable pages and is routinely read by many in the legal community.

Michael has substantial experience representing corporations (particularly financial institutions and manufacturers) and real estate developers, owners and managers. He has significant experience in class actions and unfair business practice representative actions (section 17200), as well as business torts such as misappropriation of trade secrets and raiding of corporate employees, ADA claims, and all phases of commercial and real estate finance, construction finance and construction defect claims.

Michael also has experience representing lenders in all facets of lender litigation, ranging from class actions and unfair business practices based on alleged "predatory" lending and RESPA violations or alleged violations of the Fair Debt Collection Practices Act, to claims alleging elder abuse or challenging the validity or priority of liens.

Michael is experienced in appellate matters, having had primary responsibility for preparing more than 100 appellate briefs, and he is admitted to practice before the United States Supreme Court.

Licensed for 36 years
State CA
Status Active
Acquired 1986
Updated 12/02/2022

We have not found any instances of professional misconduct for this lawyer.

Contact Michael

Reallaw, APC
The Atrium on Broadway
1981 N. Broadway, Suite 280
Walnut Creek, CA, 94596


5.0 / 5.0
  3 customer reviews
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1 Star
Posted by anonymous | April 23, 2009
Debra H. Jameson, Esq.
I have had the pleasure of working with Michael on several class actions as well as individual matters over the past ten years. As Associate General Counsel and Litigation Manager for one of the top 5 subprime mortgage lenders during its heyday, Michael was a very valuable resource to me and my department for strategic forward planning as well as resolving litigation. Michael's approach has always been very creative and client focused. I have worked with over 50 lawyers from the top forms across the United States, and Michael is clearly in my top 3 list of the most talented lawyers I have had the pleasure to add to my team. If you need the smartest lawyer to solve your biggest nightmare, give Michael a call.
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Posted by anonymous | March 25, 2009
Amazing results!
Mr. Hassen is extremely creative and gets amazing results. I will be relying on him for all my future litigation matters.
Posted by anonymous | February 11, 2009
Knowledgeable, client oriented, results driven
Over my career, I have managed dozens of outside counsel. I have worked with Michael Hassen for over a decade and found him to be one of the finest and most professional of the outside counsel I have worked with. I have used Michael on numerous real estate matters, where he has both deep experience and a high level of expertise at both the trial and appellate levels. Beyond merely being a good lawyer, Michael knows that wrapping up a matter quickly and economically for the client will bring that client back again and again. Michael’s manner is always congenial, unassuming and very professional. I can recommend him without reservation.
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AVVO RATING 10.0 (Superb)

Work Experience

  • Partner
  • Jeffer Mangels Butler & Marmaro
  • 2005 - Present
  • Shareholder
  • Miller, Starr & Regalia
  • 1991 - 2005
  • Associate
  • Sonnenschein Nath & Rosenthal
  • 1988 - 1991
  • Principal
  • Hassen Law Office
  • 1987 - 1988
  • Staff Attorney
  • California Supreme Court
  • 1986 - 1987
View all work experience


  • University of California at Berkeley, Boalt Hall School of Law
  • JD - Juris Doctor
  • 1986
  • University of California - Berkeley
  • A.B.,
  • 1983


  • San Francisco Bar Association
  • N/A

Honors and Awards

  • AV Rating
  • Martindale-Hubbell
  • 2009
  • AV Rating
  • Martindale-Hubbell
  • 2008
  • AV Rating
  • Martindale-Hubbell
  • 2007
  • AV Rating
  • Martindale-Hubbell
  • 2006
  • Graduated <i>summa cum laude</i>
  • University of California at Berkeley
  • 1983
View all awards


  • Miller & Starr, California Real Estate (3d ed.)
  • Chapter 8, “Deeds”
  • 2004
  • Miller & Starr, California Real Estate (3d ed.)
  • Chapter 14, “Adjoining Landowners”
  • 2004
  • Miller & Starr, California Real Estate (3d ed.)
  • Chapter 19, “Landlord and Tenant”
  • 2004
  • Miller & Starr, California Real Estate (3d ed.)
  • Chapter 27, “Construction Contracts”
  • 2004
View all publications

Speaking Engagements

  • Complex Litigation
  • Avoiding Ethical Dilemmas & Questionable Behavior In High-Stakes Complex Litigation
  • 2008
  • Litigating Class Action Suits
  • Electronic Discovery Issues of Particular Importance in Class Action Litigation
  • 2007
  • Defending Fraud Claims in Consumer Class Actions
  • Views from the Bench
  • 2007
  • Defending Fraud Claims in Consumer Class Actions
  • Ethical Issues in Settling Class Actions
  • 2007
  • Defending Consumer Protection Class Actions
  • Closing Down The Case
  • 2007
  • 2007 Class Action Litigation Conference
  • Settling Class Actions from A to Z
  • 2007
View all speaking engagements

Attorney endorsements

Received (5)
Given (2)
Endorse Michael
Unknown Attorney | Nov 09
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Class action Attorney | Oct 09
Relationship: Friend
"This good looking fellow is a close friend of mine. He is also the finest litigator that I know. He is the lawyer to the lawyers. Enough said ! Daniel Horowitz"
Class action Attorney | May 31
Relationship: Fellow lawyer in community
"I endorse this lawyer's work. I have reviewed a substantial number of Mr. Hassen's contributions on a nationwide online forum to help others and have found them to be very informative, and his recommendations very practical."
Wrongful termination Attorney | May 25
Relationship: Fellow lawyer in community
"Having read a significant number of Mr. Hassen's responses to questions posted on Avvo, I have come to respect his legal knowledge and contribution to the community."
Lawsuits and disputes Attorney | May 07
Relationship: Fellow lawyer in community
"Mr. Hassen has made a subtantial number of contributions on I have read several of his contributions and have found them to be thoughtful, informative and practical."
Credit repair
Class action