John Joseph O'Brien

John Joseph O'Brien

5.0
Rating: 9.1

Licensed for 18 years

Lawsuits and disputes Lawyer at San Diego, CA
Practice Areas: Lawsuits & Disputes, Consumer Protection, Contracts & Agreements, Business

750 B St #3300, San Diego, CA

About John

Biography

Practice Areas

4

Practice Areas

Lawsuits and Disputes 55%

Lawsuits and disputes, representing businesses and individuals, in matters such as fraud, breach of contract, shareholder and partnership disputes, defamation, interference, trade secrets, and real estate litigation.

55%
Business 15%

San Diego misappropriation of trade secrets lawsuits, thefts/embezzlement lawsuits, shareholder/partnership lawsuits, defamation lawsuits, trespass and nuisance lawsuits, and landlord-tenant lawsuits.

15%
Consumer Protection 15%

San Diego fraud and misrepresentation lawsuits, fraudulent omissions and promises lawsuits, fraudulent inducement into contracts, and investment fraud lawsuits.

14 years

15%
Contracts and Agreements 15%

San Diego breach of contract lawsuits, interference with contracts, and interference with business relationships/advantages.

14 years

15%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

Looking for an attorney? Avvo can help.

search module image

Search our directory

Quickly connect with top attorneys through our legal directory to get help with your legal issue.

chat module image

Avvo's live chat agents can help coordinate a consultation with a local attorney.

Chat with a live agent who can match you with the right attorney for your legal needs.

Chat with

Licenses

Licensed in California for 18 years

State: California

Acquired: 2007

Active

No misconduct found

Location

The O'Brien Law Firm

750 B St #3300, San Diego, CA, 92101

Ad

Transform legal challenges into solutions.

Connect now to review your situation.

The Avvo Rating explained

display-bg

The Avvo Rating explained

John Joseph O'Brien's Reviews

Avvo Review Score

5.0 /5.0

9 Client Reviews

Filter Avvo Reviews (9) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.
Star rating
5 stars 9
4 stars 0
3 stars 0
2 stars 0
1 star 0

Showing 1 - 2 of 2 reviews | Practice Area Knowledge

Posted by Don Christensen | December 20, 2012 | Contracts & Agreements

Phenomenal Business Litigator

John O’Brien successfully prosecuted a San Diego breach of contract case for our investment banking firm. The legal work and services John’s law firm provided were exceptional. We were extremely satisfied with his law firm’s services, with the outcome of our case, and with the large judgment John o...btained in our San Diego breach of contract lawsuit. In addition, John was very personable and easy to work with. And, maybe more importantly, John operates his business litigation firm with integrity and honesty. I trust San Diego business attorney John O'Brien and would gladly allow him to handle any business disputes or litigation that we may have in the future.

Posted by Michael | April 15, 2010 | Contracts & Agreements

Excellent Business Lawyer

Mr. O'Brien helped my business with some corporate legal issues pertaining to breach of contract. His legal expertise is second to none! He was great attorney to work with and his rates were affordable. He was successful in delivering exactly what he promised.

See All Client Reviews

John Joseph O'Brien's Lawyer Endorsements

Endorse John
Constantine D. Buzunis headshot
Constantine Buzunis

Personal injury lawyer | Jan 28

Relationship: Fellow lawyer in community

"I have know Attorney John O'Brien for many years from the San Diego County legal community and from my work with him personally over the years. I strongly endorse John, and would not hestitate to recommend him to anyone in need of a lawyer."

Bonnie Lynn Stokes headshot
Bonnie Stokes

Consumer protection lawyer | Jan 22

Relationship: Worked together on matter

"John O'Brien is an excellent attorney with a great track record. He is an aggressive plaintiff's attorney and I often recommend him to clients."

Brian Kenneth Johnson headshot
Brian Johnson

Unknown lawyer | May 06

Relationship: Fellow lawyer in community

"John works in the same building as I do so I am able to see the tireless effort and doggedness in which he pursues his case goals. There is one person in the office before me at 7am and one person who works late until the night representing his clients, that person is John. I endorse this lawyer."

Mark Gerald Spencer headshot
Mark Spencer

Business lawyer | Mar 29

Relationship: Fellow lawyer in community

"I have known John for several years. He zealously represents his clients and consistently obtains the best results available whether through negotiation or trial representation."

Bruce Donald Jaques Jr headshot
Bruce Jaques

Contracts and agreements lawyer | Dec 03

Relationship: Opposing Counsel on matter

"Mr. O'Brien and I opposed each other in a contract case. John staunchly advocated for and protected his client and, without fail, was professional and poised throughout. John is a solid part of the enlightened legal community in Southern California. I endorse this lawyer."

Samuel S Godkin headshot
Samuel Godkin

Lawsuits and disputes lawyer | Oct 13

Relationship: Fellow lawyer in community

"I endorse this lawyer. Don't let his age fool you. He is Agressive and knowledgeable."

John Noah Kitta headshot
John Kitta

Lawsuits and disputes lawyer | Apr 29

Relationship: Other

"I endorse John Joseph O’Brien. Do not hesitate to contact Mr. O’Brien if you want consistent and effective representation for all your legal business needs in the greater San Diego area. If you want no nonsense quality representation, this is your man."

T. Joshua Ritz headshot
T. Ritz

Lawsuits and disputes lawyer | Apr 21

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Lloyd Stewart Mann headshot
Lloyd Mann

Unknown lawyer | Apr 02

Relationship: Fellow lawyer in community

"I endorse this lawyer. I have noticed for sometime that Mr. O'Brien's AVVO answers are well thought out, easy to understand, and very helpful to the community."

Albert Lee Crosner headshot
Albert Crosner

Business lawyer | Mar 02

Relationship: Fellow lawyer in community

"Attorney O'Brien is an experienced attorney. In addition to his clients, he is an advocatge for Avvo, being a proflific responder to Avvo community posed questions. As a result, I endorse this lawyer."

Malosack Berjis headshot
Malosack Berjis

Lawsuits and disputes lawyer | Feb 09

Relationship: Fellow lawyer in community

"Mr. O'Brien has a very high level of legal knowledge and expertise. He posts very concise and well thought out answers on Avvo. I endorse this lawyer."

Jeff Hoang Pham headshot
Jeff Pham

Business lawyer | Jan 29

Relationship: Fellow lawyer in community

"I endorse Mr. O'Brien. He consistently provides thoughtful and pragmatic advice to Avvo users, and I encourage those located in Mr. O'Brien's area to contact him for legal guidance on business-related issues."

Robert Bruce Kopelson headshot
Robert Kopelson

Lawsuits and disputes lawyer | Jan 25

Relationship: Other

"I endorse this lawyer. Gives consistently accurate and helpful answers on Avvo."

Michael Charles Doland headshot
Michael Doland

Business lawyer | Jan 24

Relationship: Fellow lawyer in community

"I have just review an very pragmatic answer of Mr. O"Brien. Like many of his other Avvo answers, it is accurate, analytic, and customized to the needs of the Avvo asker. These are exactly the qualities that every client would be looking for when hiring an attorney."

Adrienne Patricia Allen headshot
Adrienne Allen

Lawsuits and disputes lawyer | Jan 12

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mr. O'Brien's contributions to the AVVO website are informative and accurate. He is an asset to the AVVO and legal community."

David J Munoz headshot
David Munoz

Business lawyer | Dec 18

Relationship: Fellow lawyer in community

"John is an outstanding business attorney. He takes special care of his clients and achieves excellent results. I highly recommend him."

Ryan Thomas Darby headshot
Ryan Darby

Business lawyer | Dec 17

Relationship: Fellow lawyer in community

"I am always pleased to refer cases to John. He is a hard-working, competent, and articulate attorney who handles his cases with utmost professionalism."

Tess M Reutzel headshot
Tess Reutzel

Personal injury lawyer | Aug 13

Relationship: Fellow lawyer in community

"I endorse this lawyer. Attorney O'Brien knows what it takes to build a winning strategy both in and out of the courtroom and has earned a reputation for his unwavering dedication to her clients. If you are in need of an experienced, reliable, and aggressive personal injury attorney, contact Mr. O'Brien. You will be in good hands."

Arie Ebrahimian headshot
Arie Ebrahimian

Litigation lawyer | Mar 27

Relationship: Fellow lawyer in community

"I endorse Mr. O'Brien. Mr. O'Brien's firm provides individuals and businesses with tailored civil litigation representation. As part of his civil litigation practice, Mr. O'Brien handles a variety of person injury cases Whether you suffered injuries in a car accident, slip-and-fall or other type of accident, Mr. O'Brien can assist you in seeking compensation for pain and suffering, lost wages and medical expenses. Attorney O'Brien does not shy away from taking on large insurance companies or aggressively opposing counsel when fighting for your rights."

Brian Michael Holm headshot
Brian Holm

Personal injury lawyer | Aug 29

Relationship: Fellow lawyer in community

"Mr. O'Brien is a hard working, aggressive attorney to whom I consistently refer clients with personal injuries cases. I have the utmost confidence that the clients I refer will receive excellent legal representation."

View All Endorsements
Bruce Donald Jaques Jr headshot
Bruce Jaques

Litigation lawyer

Natalie Brynn Declusin headshot
Natalie Declusin

Nursing home abuse and neglect lawyer

Albert Lee Crosner headshot
Albert Crosner

Contracts and agreements lawyer

Lloyd Stewart Mann headshot
Lloyd Mann

Lawsuits and disputes lawyer

John Noah Kitta headshot
John Kitta

Divorce and separation lawyer

Neil Pedersen headshot
Neil Pedersen

Lawsuits and disputes lawyer

Anne Marie Diggle Rabago headshot
Anne Rabago

Tax lawyer

Jeff Hoang Pham headshot
Jeff Pham

Litigation lawyer

David Andrew Mallen headshot
David Mallen

Employment and labor lawyer

Constantine D. Buzunis headshot
Constantine Buzunis

Lawsuits and disputes lawyer

Matthew Gabriel Holt headshot
Matthew Holt

Immigration lawyer

Malosack Berjis headshot
Malosack Berjis

Litigation lawyer

Frank Wei-Hong Chen headshot
Frank Chen

Litigation lawyer

Robert Bruce Kopelson headshot
Robert Kopelson

Personal injury lawyer

Michael Raymond Daymude headshot
Michael Daymude

Litigation lawyer

Michael Charles Doland headshot
Michael Doland

Litigation lawyer

Adrienne Patricia Allen headshot
Adrienne Allen

Personal injury lawyer

Ryan Thomas Darby headshot
Ryan Darby

Landlord or tenant lawyer

David J Munoz headshot
David Munoz

Car accident lawyer

Brian Michael Holm headshot
Brian Holm

Business lawyer

Experience

Rating:  9.1 (Superb)

Honors

2010

Pro Bono Legal Services, Legal Aid Society of San Diego

Work Experience

2009 - Present

Business Litigation Attorney, The O'Brien Law Firm

2008 - 2009

Business Litigation Attorney, English & Gloven

2007 - 2008

Business Litigation and Personal Injury Law Clerk, Neil, Dymott, Frank, Harrison & McFall, LLP

2007 - 2007

Legal Intern, Stutz Artiano Shinoff & Holtz Apc

2006 - 2006

Personal Injury Law Clerk, Beach Whitman, LLP

2006 - 2006

Law Clerk, United States Attorney's Office San Diego

Associations

2014 - Present

Association of Business Trial Lawyers

Member

2010 - Present

Consumer Attorneys of San Diego

Member

2007 - Present

State Bar of California

Member

2007 - Present

San Diego County Bar Association

Member

2009 - 2010

Legal Aid Society of San Diego

Volunteer Attorney

Sample of Legal Cases

Beer Brewer v. Brewery

Case settled Confidentially

Business Seller v. Business Buyer

Case Settled in Client's Favor

Former Employer v. Ex-Employee

Case Settled in Client's Favor

Husband & Wife v. Florist

Judgment in Client's Favor

Business Consultant v. Energy Company

$365,000 Judgment in Client's Favor

Homeowner v. HOA

Case settled for a confidential amount.

Ex-Partner v. Solar Energy Company

Case settled for a confidential amount.

Boat Buyer v. Boat Seller

Client Prevailed and awarded over $89,000.00.

Computer Leasor v. Computer Leasee

Case Settled for $7,000

Tenant v. Property Management (Mice Infestation)

Settled in Confidence

See More Legal Cases

Education

2007

California Western School of Law

Law

2003

Boston College

BA - Bachelor of Arts

Languages

English

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution