David L. Osias

Aaron Olsen is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Aaron, 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 Aaron is held by other top lawyers in the same geographic and legal practice area.

Deyan P. Spiridonov is a member of the firm’s Mergers & Acquisitions practice. He is a member of the California State Bar Association. Deyan practices in the area of mergers and acquisitions and has represented public and private companies in the telecommunications, semiconductor, software, technology-related defense contracting, biotechnology and financial industries. Mr. Spiridonov has experience in structuring and negotiating all aspects of acquisition transactions, including sto...

Mike (Mohammad) Kazerouni is one of the founding partners at Kazerouni Law Group APC. For over a decade Mike has dedicated his legal career to the representation of personal injury victims and consumer protection from dangerous and defective products. Mike has successfully represented thousands of clients and litigated hundreds of personal injury and consumer protection cases including wrongful death, traumatic brain injury, burn injuries, defective products litigation, lemon law, among other...

Noah A. Katsell is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Noah A., who practices law in San Diego, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Noah A. is held by other top lawyers in the same geographic and legal practice area.

Rebecca L. O'Toole is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Rebecca L., 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 Rebecca L. is held by other top lawyers in the same geographic and legal practice area.

Keith Cochran is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Keith, 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 Keith is held by other top lawyers in the same geographic and legal practice area.

For over twenty years, Mr. Gibson has represented numerous types of clients, small and large, local and international, in all types of commercial disputes. Mr. Gibson’s direct approach as a business litigator and advisor has delivered successful results in commercial, construction and real estate disputes. His balanced practice includes representation of local, national and international companies, as well as individuals. Previously, he co-chaired the San Diego County Bar Association&rs...

In his practice, HFM Partner James “Jim” Peterson focuses on business and employment litigation. Mr. Peterson advises and litigates disputes for a number of business clients on various aspects of the employment relationship, including misappropriation of trade secrets and proprietary information, protection of customer lists and employees, discrimination, sexual harassment, breach of contract, wage and hour laws, and wrongful termination. Mr. Peterson is an expert on employment-re...

Agustín Ceballos is a Shareholder and Chair of Buchalter’s Latin America practice group and a member of the Corporate and Tax, Benefits and Estate Planning practice groups.

Louis Mezzullo’s principal areas of practice are Taxation, Estate and Business Succession Planning, and Employee Benefits. He was on the faculty of the University of Miami School of Law Graduate Program in Estate Planning from 2004 to 2007 and on the faculty of the University of San Diego School of Law in 2009. He was an adjunct professor of law at the University of Richmond Law School from 1978 until 2006. He is listed in Who's Who in American Law, Who's Who in Emerging Leaders and Who...