The RegistryState Bar Practice Area · Surnames O
Mediation and Arbitration Attorneys in California, Surnames O
76 attorneys with an active California license whose State Bar record lists “Alternative Dispute Resolution” as a practice area and whose surname begins with O. Practice areas on the record are self-reported; listings are in surname order, neutral, never ranked. The choice is always yours.
Mediation and Arbitration · surnames O
| Attorney | Firm | City | Bar number | Admitted |
|---|---|---|---|---|
| Robert E. Oakes | Not recorded | Stockton | #151289 | 1990 |
| Nicole A. Oberjuerge | US Army Legal Services Agency | Fort Belvoir | #293406 | 2013 |
| Nnogo C. Obiamiwe | Law Offices of Nnogo C. Obiamiwe, APC | Los Angeles | #219160 | 2002 |
| Bradley R. O'Brien | Not recorded | Sausalito | #189425 | 1997 |
| Patrick K. O'Brien | O'Brien Law, P.C. | Petaluma | #167957 | 1993 |
| William Joseph O'Brien | One LLP | Culver City | #99526 | 1981 |
| Frank J. Ochoa, Jr. | Hon. Frank J. Ochoa (Ret.) | Santa Barbara | #67011 | 1975 |
| Daniel J. O'Connell | Not recorded | Mammoth Lakes | #143756 | 1989 |
| Daniel J. O'Connell | Law Offices of Daniel J. O'Connell | San Francisco | #262950 | 2009 |
| Philip A. O'Connell Jr | Denton US LLP | Boston | #152486 | 1991 |
| Deborah L. O'Connor | Judicial Arbitration & Mediation Ser. | Irvine | #155760 | 1991 |
| Michael John O'Connor | Not recorded | La Crescenta | #87381 | 1979 |
| Robert T. O'Connor | State Compensation Insurance Fund | Oxnard | #179631 | 1995 |
| Shelley O'Connor | Shelley O'Connor Mediation Services | Walnut Creek | #118260 | 1985 |
| Donald A. Odell | Armstrong Odell & Associates | Lafayette | #172494 | 1994 |
| Jonathan Steven O'Donnell | Law Offices of Jonathan O'Donnell | San Rafael | #100051 | 1981 |
| Mark Alan Oertel | Lewis Brisbois Bisgaard & Smith LLP | Los Angeles | #120141 | 1985 |
| Tatev Oganyan | The Oganyan Agency | Newport Beach | #320344 | 2018 |
| John V. O'Grady | Franklin D. Azar & Associates, P.C. | Aurora | #325607 | 2019 |
| Angela E. Oh | California Civil Rights Dept. | Los Angeles | #126133 | 1986 |
| Henry H. Oh | Shumener, Odson & Oh LLP | Los Angeles | #187127 | 1996 |
| Patrick J. O'Hara | Judge Patrick O'Hara (Ret) | Visalia | #72138 | 1976 |
| Richard C. O'Hare | Messner Reeves LLP | San Jose | #167960 | 1993 |
| William S. O'Hare, Jr. | Snell & Wilmer LLP | Costa Mesa | #82562 | 1978 |
| John J. E. Ohashi | Not recorded | Irvine | #101175 | 1981 |
| Kenneth A. Ohashi | Sessions, Israel & Shartle LLP | San Diego | #230440 | 2004 |
| Daniel A. Ojeda | F3 Law | Los Angeles | #167994 | 1993 |
| Michael P. O. Okayo | Not recorded | Torrance | #249466 | 2007 |
| Onyebuchi Okeke | LAWYERS FOR EMPLOYEE AND CONSUMER RIGHTS | BURBANK | #338730 | 2021 |
| David H. Oken | Oken Mediation | Los Angeles | #175219 | 1994 |
| Chiemela P. Okwandu | Gordon Rees Scully Mansukhani | Los Angeles | #323893 | 2018 |
| Donald Charles Oldaker | Clifford and Brown | Bakersfield | #166230 | 1993 |
| Margaret Lynn Oldendorf | ADR Services, Inc. | Los Angeles | #116069 | 1984 |
| Douglas William Oldfield | Douglas Oldfield ADR | Carmel | #101176 | 1981 |
| Tyler H. Oldham-Monroe | Kuzyk Law, LLP. | Lancaster | #338221 | 2021 |
| Timothy E. O'Leary | Not recorded | Palo Alto | #127782 | 1987 |
| Glenn Philip Oleon | ADR Services, Inc. | Orinda | #72150 | 1976 |
| Martin Olinick | Not recorded | West Hills | #79640 | 1978 |
| Andrew T. Oliver | Amin, Turocy & Watson, LLP | Redwood City | #226098 | 2003 |
| Gregory J. Oliver | Law Offices of Gregory J. Oliver | Mi Wuk Village | #158349 | 1992 |
| Robert Harold Oliver | Baker Manock & Jensen PC | Fresno | #57940 | 1973 |
| Sean E. Olk | Virginia Realtors | Glen Allen | #312767 | 2016 |
| Callan C. OlsenState Bar certified specialist | Olsen Family Law, LLP | Los Gatos | #309286 | 2016 |
| Christopher John Olsen | Law Office of Christopher J. Olsen | Westlake Village | #109124 | 1983 |
| Alan M. Olson | Morrison & Foerster | Los Angeles | #155510 | 1991 |
| Kimberlee A. O'Maley | Kimberlee O'Maley Attorney at Law | Fair Oaks | #263415 | 2009 |
| Nathan D. O'Malley | Musick Peeler & Garrett LLP | Los Angeles | #212193 | 2001 |
| Terrance O'Malley | Not recorded | Wildomar | #140479 | 1989 |
| Kehinde A. Onayemi | Precedent Attorneys | Chatsworth | #363175 | 2025 |
| Vincent James O'Neill Jr | Alternative Resolution Centers (ARC) | Los Angeles | #77644 | 1977 |
| Jesko P. Onken | Law Office of Jesko Onken | San Francisco | #263130 | 2009 |
| Juan-Carlos Orellana | Santa Clara Valley Water District | San Jose | #233403 | 2004 |
| Daniel J. O'Rielly | O'Rielly & Roche LLP | Los Angeles | #214846 | 2001 |
| Jason Orlandi | Transamerica | Philadelphia | #210214 | 2000 |
| Robert B. O'Rourke | Angus & Terry | Walnut Creek | #202333 | 1999 |
| Jeffrey A. Orr | Jeffrey Orr Law, PC | Palm Springs | #204909 | 1999 |
| Janelle Orsi | Sustainable Economies Law Center | Oakland | #254897 | 2008 |
| Andrew J. Orsmond | Not recorded | Agoura Hills | #324356 | 2018 |
| Natalie E. Ortiz | The Estate Lawyers | San Diego | #303869 | 2015 |
| Pablo Ortiz Mena M de O | Ammper Energia, S.A.P.I de C.V. | Mexico City 11000 | #366216 | 2025 |
| Timothy E. O'Ryan | O'Ryan Law | Santa Monica | #295626 | 2014 |
| Suzanne S. Orza | Shartsis Friese LLP | San Francisco | #312906 | 2016 |
| Marla D. Osborne | Not recorded | Carmel | #125438 | 1986 |
| Gayle T. Oshima | CA Dept of Industrial Relations | Oakland | #156344 | 1991 |
| Benny C. Osorio | Signature Resolution LLC | Los Angeles | #169069 | 1993 |
| Allen C. Ostergar III | Ostergar Lattin Julander LLP | Irvine | #166411 | 1993 |
| Barry R. Ostrager | Not recorded | New York | #183770 | 1996 |
| Paul Michael Ostroff | Ballard Spahr LLP | Portland | #67054 | 1976 |
| Melissa C. O'Sullivan | Not recorded | San Mateo | #240228 | 2005 |
| Samuel James Otero | JAMS | Glendale | #73992 | 1977 |
| Marilyn Burrill O'Toole | Not recorded | San Francisco | #77666 | 1977 |
| Tucker H. Owen | Not recorded | San Francisco | #294130 | 2013 |
| Traci A. Owens | Not recorded | San Jose | #200283 | 1999 |
| Jeffery Owensby | Not recorded | Sandpoint | #105229 | 1982 |
| Benjamin M. Owens-Filice | Wilson Elser LLP | Denver | #238375 | 2005 |
| Jasper L. Ozbirn | Ozbirn Law & Mediation, P.C. | Santa Barbara | #265836 | 2009 |
Mediation and Arbitration attorneys, A to Z
Surnames A179 attorneysSurnames B429 attorneysSurnames C331 attorneysSurnames D190 attorneysSurnames E91 attorneysSurnames F176 attorneysSurnames G239 attorneysSurnames H274 attorneysSurnames I21 attorneysSurnames J93 attorneysSurnames K275 attorneysSurnames L238 attorneysSurnames M444 attorneysSurnames N92 attorneysSurnames O76 attorneysSurnames P220 attorneysSurnames Q14 attorneysSurnames R234 attorneysSurnames S491 attorneysSurnames T143 attorneysSurnames U5 attorneysSurnames V51 attorneysSurnames W242 attorneysSurnames X3 attorneysSurnames Y39 attorneysSurnames Z51 attorneys
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