David L. Osias

Hayden Trubitt is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Hayden, who practices law in San Diego, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hayden is held by other top lawyers in the same geographic and legal practice area.

Matthew C. Bernstein is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Intellectual Property, Litigation - Patent and Patent Law. Matthew C., who practices law in San Diego, California, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew C. is held by other top lawyers in the same geographic and legal practice area.

Donald Sheppard is certified as a legal specialist in immigration and nationality law by the State Bar of California Board of Legal Specialization. Mr. Sheppard’s typical clients are companies in the high tech and start-up industries seeking to hire the brightest and best talent which includes foreign nationals who need employment sponsorship in a variety of professional fields. He works closely with client companies’ HR professionals, talent partners, corporate legal counsels, ma...

Steven Cologne was elected Managing Partner of the Firm in 2016. He devotes his practice to complex Tort and Commercial litigation in State and Federal Courts. In 2020, Mr. Cologne achieved the distinction of being certified as a Fellow in the Chartered Institute of Arbitrators (CIArb) effective May 2020. On May 4, 2020, he was admitted to practice law in the District of Columbia. Mr. Cologne joined Higgs Fletcher & Mack in 1999 after previously enjoying 15 years as an associate, partner ...

Janice Walshok has experience primarily in the fields of personal injury, including wrongful death, product liability, and insurance bad faith. She had the distinct honor of serving as a judicial extern for the Honorable John A. Houston for the United States District Court for the Southern District of California. Janice has successfully tried several jury trials, argued before the Second District Court of Appeal, and prevailed at the Ninth Circuit in upholding a corporate client’s defen...

Michael Kalt is a partner in the Employment Law Practice Group of Wilson Turner Kosmo LLP, where he has worked since 1996. His employment law practice emphasizes the litigation and trial of wrongful termination, harassment, discrimination cases in state and federal court. Michael also provides advice and training to employers on employee discipline and investigations, employment policies and procedures, and fair employment practices. Michael represents businesses of all sizes and in most indu...

Bing Ai Ph.D. is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Bing, who practices law in San Diego, California, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bing is held by other top lawyers in the same geographic and legal practice area.

John E. Wehrli is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice. John E., who practices law in San Diego, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.

Amanda M. Mullane is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. Amanda M., who practices law in San Diego, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Amanda M. is held by other top lawyers in the same geographic and legal practice area.

John E. Fitzsimmons is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. John E., who practices law in San Diego, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.