Darren E. Donnelly

John W. Lucas is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. John W., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John W. is held by other top lawyers in the same geographic and legal practice area.

Joseph V. Mauch is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Joseph V., who practices law in San Francisco, California, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph V. is held by other top lawyers in the same geographic and legal practice area.

Ryan Derry’s practice includes various aspects of employment litigation and counseling, including employment discrimination, retaliation, harassment, and wage and hour issues. He has represented employers in multiple jurisdictions in state and federal courts as well as in administrative proceedings against individual and class claims across industries, including retail, transportation, finance, healthcare, and technology fields. A talented litigator, Mr. Derry is adept at handling compl...

Paul J. Niewiadomski is a Partner in Lubin Olson 's Real Estate , Business and Finance and Workouts Practice Groups. He represents clients in a broad range of real estate and business transactions. His practice encompasses acquisitions, dispositions, joint ventures, financing, leasing, development and construction. Mr. Niewiadomski has served on the boards of several non-profit and civic organizations and is a member of the Urban Land Institute (San Francisco) and NAIOP (Silicon Valley Chapte...

Adam Neufer is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Adam, who practices law in San Francisco, California, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Adam is held by other top lawyers in the same geographic and legal practice area.

Greg A. Christianson is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. Greg A., who practices law in San Francisco, California, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Greg A. is held by other top lawyers in the same geographic and legal practice area.

David Bertenthal is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Bankruptcy. David, who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Ariel Sosna is a family law attorney serving clients in San Francisco, California through Van Voorhis & Sosna LLP . Before establishing her own practice, she worked at a San Francisco law firm representing individuals and families in a wide range of family law matters. Her practice includes divorce , child custody , child support , spousal support , property division, and other complex family law disputes. In addition to litigation, Ariel has substantial experience in mediation and collab...

Richard J. Nelson is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Richard J., who practices law in San Francisco, California, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Richard J. is held by other top lawyers in the same geographic and legal practice area.

Monica Mazzei is a Shareholder in Buchalter’s San Francisco office and the chair of the Firm’s Family Law group. Monica is a Certified Family Law Specialist representing high net worth clients. She represents clients throughout California, with a concentration in San Francisco and Silicon Valley, as well as Los Angeles.