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John Harriman Corcoran

John Harriman Corcoran

also known as John H. Corcoran, John Corcoran

About me


John Corcoran is an attorney with the Corcoran Law Firm, in San Rafael, California. His clients are primarily entrepreneurs, small business owners, and real estate investors, and he helps them to grow their businesses and to avoid missteps and disputes along the way, with business partners, vendors, and others.  



Practice areas


  1. Litigation: 40%
    7 years
  2. Business: 35%
    8 years
  3. Real Estate: 15%
    8 years
  4. Land Use & Zoning: 10%
    7 years



Free consultation (30 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

11 total 

Are you an attorney? Endorse this lawyer

  • David A Owens

    I endorse this lawyer. Very smart and thorough, while also maintaining an easy-going demeanor.


    David Owens Business Attorney
    Relationship: Worked for lawyer

  • William Douglas Bradbury

    John is an excellent attorney when it comes to navigating the political minefields of land use and zoning regulations. His work with the Town of Tiburon combined with his experience in Marin County government gives him a superior understanding of this complex area of law. John brings a professional demeanor to the practice of law and his willingness to help others in their professional development and networking is evident in his preparation and delivery of his business development courses.


    William Bradbury General Practice Attorney
    Relationship: Co-worker

Contact info

The Corcoran Law Firm

24 Professional Center Parkway, Suite 240
San Rafael, CA, 94903


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Pro Bono Publico AwardPublic Interest Clearinghouse2007
CALI Award in Legal EthicsUSF School of Law2006
Work experience
TitleCompany nameDuration
ChairTown of Tiburon Planning Commission2008 - Present
AttorneyPlastiras & Terrizzi2009 - 2011
AssociateOmni Law Group, LLP2008 - 2009
Law ClerkMarin County District Attorney's Office2007 - 2007
Summer AssociateReed Smith2006 - 2006
Law ClerkSan Francisco City Attorney's Office, Litigation Department2005 - 2005
Senior AdvisorCalifornia Board of Equalization2003 - 2004
SpeechwriterOffice of the Governor2000 - 2003
Writer, Presidential Letters and MessagesThe White House1999 - 2000
Executive AssistantDreamworks SKG1999 - 1999
Association namePosition nameDuration
State Bar of CaliforniaMember2007 - Present
Marin County Bar AssociationMember2006 - Present
Legal cases
Case nameOutcome
John Doe v. City of San FranciscoN/A
See all legal cases 
Publication nameTitleDate
The Marin LawyerThe Five Principles of Advising Distressed Real Estate Clients2010
San Francisco ChronicleFeds should reject California's loan modification rule2010
San Francisco ChronicleNFL stadium bills cut to the front of the Line2009
North Bay BizColorado "Balloon Boy" Presents Cautionary Tale2009
The Marin Lawyer MagazineBay Area and Congress At Odds Over Approach to Climate Change2008
San Francisco Business TimesCar Startups Need to Rev Up for Revolution2008
School nameMajorDegreeGraduated
University of San Francisco School of LawLawJD - Juris Doctor2007
University of California - Santa BarbaraEnglishBA - Bachelor of Arts1998
Speaking engagements
Conference nameTitleDate
New Media Expo Las VegasSocial Media and the Law2013
Renaissance Entrepreneurship Center ClassSmall Business Legal Issues2012
S.F. Green FestivalMarin Clean Energy2008
S.F. Green FestivalAB 322008
Presidio School of ManagementMarin Clean Energy - Community Choice Aggregation and AB 322008
Local Clean Energy Alliance of the East BayCommunity Choice Aggregation2008
Local Clean Energy Alliance of the East BayMarin Clean Energy2008
Center for Resource SolutionsMarin Clean Energy2008